252135100 has 36 divisors (see below), whose sum is σ = 625296784. Its totient is φ = 86446080.

The previous prime is 252135071. The next prime is 252135139. The reversal of 252135100 is 1531252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179397 + ... + 180796.

Almost surely, 2^252135100 is an apocalyptic number.

252135100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252135100 is an abundant number, since it is smaller than the sum of its proper divisors (373161684).

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

252135100 is a wasteful number, since it uses less digits than its factorization.

252135100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360214 (or 360207 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 252135100 is about 15878.7625462440. The cubic root of 252135100 is about 631.7488152857.

Adding to 252135100 its reverse (1531252), we get a palindrome (253666352).

The spelling of 252135100 in words is "two hundred fifty-two million, one hundred thirty-five thousand, one hundred".