252666142 has 16 divisors (see below), whose sum is σ = 402613200. Its totient is φ = 118584000.

The previous prime is 252666133. The next prime is 252666181. The reversal of 252666142 is 241666252.

It is a junction number, because it is equal to n+sod(n) for n = 252666098 and 252666107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26359 + ... + 34642.

It is an arithmetic number, because the mean of its divisors is an integer number (25163325).

Almost surely, 2^252666142 is an apocalyptic number.

252666142 is a deficient number, since it is larger than the sum of its proper divisors (149947058).

252666142 is a wasteful number, since it uses less digits than its factorization.

252666142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61131.

The product of its digits is 34560, while the sum is 34.

The square root of 252666142 is about 15895.4755197824. The cubic root of 252666142 is about 632.1920299206.

The spelling of 252666142 in words is "two hundred fifty-two million, six hundred sixty-six thousand, one hundred forty-two".