252113642 has 8 divisors (see below), whose sum is σ = 412549632. Its totient is φ = 114597100.

The previous prime is 252113629. The next prime is 252113651. The reversal of 252113642 is 246311252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×252113642² = 127122576965008328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5729834 + ... + 5729877.

It is an arithmetic number, because the mean of its divisors is an integer number (51568704).

Almost surely, 2^252113642 is an apocalyptic number.

252113642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

252113642 is a deficient number, since it is larger than the sum of its proper divisors (160435990).

252113642 is a wasteful number, since it uses less digits than its factorization.

252113642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11459724.

The product of its digits is 2880, while the sum is 26.

The square root of 252113642 is about 15878.0868494917. The cubic root of 252113642 is about 631.7308930810.

Adding to 252113642 its reverse (246311252), we get a palindrome (498424894).

The spelling of 252113642 in words is "two hundred fifty-two million, one hundred thirteen thousand, six hundred forty-two".