4221152513 has 4 divisors (see below), whose sum is σ = 4469455620. Its totient is φ = 3972849408.

The previous prime is 4221152503. The next prime is 4221152519. The reversal of 4221152513 is 3152511224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1885556929 + 2335595584 = 43423^2 + 48328^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4221152513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4221152519) 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 3 ways as a sum of consecutive naturals, for example, 124151528 + ... + 124151561.

It is an arithmetic number, because the mean of its divisors is an integer number (1117363905).

Almost surely, 2^4221152513 is an apocalyptic number.

It is an amenable number.

4221152513 is a deficient number, since it is larger than the sum of its proper divisors (248303107).

4221152513 is a wasteful number, since it uses less digits than its factorization.

4221152513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248303106.

The product of its digits is 2400, while the sum is 26.

The square root of 4221152513 is about 64970.3972051888. The cubic root of 4221152513 is about 1616.1326886409.

Adding to 4221152513 its reverse (3152511224), we get a palindrome (7373663737).

The spelling of 4221152513 in words is "four billion, two hundred twenty-one million, one hundred fifty-two thousand, five hundred thirteen".