252112155135442 has 16 divisors (see below), whose sum is σ = 432317285487360. Its totient is φ = 108016811601408.

The previous prime is 252112155135437. The next prime is 252112155135469. The reversal of 252112155135442 is 244531551211252.

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, 2604523642 + ... + 2604620437.

It is an arithmetic number, because the mean of its divisors is an integer number (27019830342960).

Almost surely, 2^{252112155135442} is an apocalyptic number.

252112155135442 is a deficient number, since it is larger than the sum of its proper divisors (180205130351918).

252112155135442 is a wasteful number, since it uses less digits than its factorization.

252112155135442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5209147545.

The product of its digits is 480000, while the sum is 43.

The spelling of 252112155135442 in words is "two hundred fifty-two trillion, one hundred twelve billion, one hundred fifty-five million, one hundred thirty-five thousand, four hundred forty-two".