252512154 has 20 divisors (see below), whose sum is σ = 565814634. Its totient is φ = 84170664.

The previous prime is 252512137. The next prime is 252512167. The reversal of 252512154 is 451215252.

252512154 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 252333225 + 178929 = 15885^2 + 423^2 .

It is a super-3 number, since 3×252512154³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 779197 + ... + 779520.

Almost surely, 2^252512154 is an apocalyptic number.

252512154 is an abundant number, since it is smaller than the sum of its proper divisors (313302480).

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

252512154 is a wasteful number, since it uses less digits than its factorization.

252512154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558731 (or 1558722 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 252512154 is about 15890.6310132732. The cubic root of 252512154 is about 632.0635734932.

The spelling of 252512154 in words is "two hundred fifty-two million, five hundred twelve thousand, one hundred fifty-four".