252124646 has 4 divisors (see below), whose sum is σ = 378186972. Its totient is φ = 126062322.

The previous prime is 252124619. The next prime is 252124667. The reversal of 252124646 is 646421252.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63031160 + ... + 63031163.

It is an arithmetic number, because the mean of its divisors is an integer number (94546743).

Almost surely, 2^252124646 is an apocalyptic number.

252124646 is a deficient number, since it is larger than the sum of its proper divisors (126062326).

252124646 is a wasteful number, since it uses less digits than its factorization.

252124646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126062325.

The product of its digits is 23040, while the sum is 32.

The square root of 252124646 is about 15878.4333610089. The cubic root of 252124646 is about 631.7400839966.

Adding to 252124646 its reverse (646421252), we get a palindrome (898545898).

The spelling of 252124646 in words is "two hundred fifty-two million, one hundred twenty-four thousand, six hundred forty-six".