252400134 has 32 divisors (see below), whose sum is σ = 577598976. Its totient is φ = 72028800.

The previous prime is 252400133. The next prime is 252400147. The reversal of 252400134 is 431004252.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 252400134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252400133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37959 + ... + 44109.

It is an arithmetic number, because the mean of its divisors is an integer number (18049968).

Almost surely, 2^252400134 is an apocalyptic number.

252400134 is an abundant number, since it is smaller than the sum of its proper divisors (325198842).

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

252400134 is a wasteful number, since it uses less digits than its factorization.

252400134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7140.

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

The square root of 252400134 is about 15887.1059038454. The cubic root of 252400134 is about 631.9700938554.

Adding to 252400134 its reverse (431004252), we get a palindrome (683404386).

The spelling of 252400134 in words is "two hundred fifty-two million, four hundred thousand, one hundred thirty-four".