4521263 has 4 divisors (see below), whose sum is σ = 4539528. Its totient is φ = 4503000.

The previous prime is 4521241. The next prime is 4521299. The reversal of 4521263 is 3621254.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4521263 - 2¹⁰ = 4520239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8756 + ... + 9257.

It is an arithmetic number, because the mean of its divisors is an integer number (1134882).

Almost surely, 2^4521263 is an apocalyptic number.

4521263 is a deficient number, since it is larger than the sum of its proper divisors (18265).

4521263 is a wasteful number, since it uses less digits than its factorization.

4521263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18264.

The product of its digits is 1440, while the sum is 23.

The square root of 4521263 is about 2126.3261744145. The cubic root of 4521263 is about 165.3559868406.

Subtracting from 4521263 its reverse (3621254), we obtain a palindrome (900009).

The spelling of 4521263 in words is "four million, five hundred twenty-one thousand, two hundred sixty-three".