4524042121 has 3 divisors (see below), whose sum is σ = 4524109383. Its totient is φ = 4523974860.

The previous prime is 4524042097. The next prime is 4524042143. The reversal of 4524042121 is 1212404254.

The square root of 4524042121 is 67261.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 3333792121 + 1190250000 = 57739^2 + 34500^2 .

It is not a de Polignac number, because 4524042121 - 2¹³ = 4524033929 is a prime.

It is a super-2 number, since 2×4524042121² = 40933914225164357282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4524042161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 33631 + ... + 100891.

It is an arithmetic number, because the mean of its divisors is an integer number (1508036461).

Almost surely, 2^4524042121 is an apocalyptic number.

4524042121 is the 67261-st square number.

4524042121 is the 33631-st centered octagonal number.

It is an amenable number.

4524042121 is a deficient number, since it is larger than the sum of its proper divisors (67262).

4524042121 is an frugal number, since it uses more digits than its factorization.

4524042121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134522 (or 67261 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The cubic root of 4524042121 is about 1653.8986013148.

Multiplying 4524042121 by its sum of digits (25), we get a square (113101053025 = 336305²).

Adding to 4524042121 its reverse (1212404254), we get a palindrome (5736446375).

The spelling of 4524042121 in words is "four billion, five hundred twenty-four million, forty-two thousand, one hundred twenty-one".