252123042 has 16 divisors (see below), whose sum is σ = 521634240. Its totient is φ = 81142992.

The previous prime is 252123037. The next prime is 252123043. The reversal of 252123042 is 240321252.

252123042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (252123043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724318 + ... + 724665.

It is an arithmetic number, because the mean of its divisors is an integer number (32602140).

Almost surely, 2^252123042 is an apocalyptic number.

252123042 is an abundant number, since it is smaller than the sum of its proper divisors (269511198).

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

252123042 is a wasteful number, since it uses less digits than its factorization.

252123042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449017.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 252123042 is about 15878.3828521673. The cubic root of 252123042 is about 631.7387442978.

Adding to 252123042 its reverse (240321252), we get a palindrome (492444294).

The spelling of 252123042 in words is "two hundred fifty-two million, one hundred twenty-three thousand, forty-two".