252661146 has 32 divisors (see below), whose sum is σ = 516336000. Its totient is φ = 82399680.

The previous prime is 252661127. The next prime is 252661151. The reversal of 252661146 is 641166252.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71100 + ... + 74568.

It is an arithmetic number, because the mean of its divisors is an integer number (16135500).

Almost surely, 2^252661146 is an apocalyptic number.

252661146 is an abundant number, since it is smaller than the sum of its proper divisors (263674854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252661146 is a wasteful number, since it uses less digits than its factorization.

252661146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734.

The product of its digits is 17280, while the sum is 33.

The square root of 252661146 is about 15895.3183673684. The cubic root of 252661146 is about 632.1878630884.

The spelling of 252661146 in words is "two hundred fifty-two million, six hundred sixty-one thousand, one hundred forty-six".