252372121 has 4 divisors (see below), whose sum is σ = 252485044. Its totient is φ = 252259200.

The previous prime is 252372083. The next prime is 252372137. The reversal of 252372121 is 121273252.

252372121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 132710400 + 119661721 = 11520^2 + 10939^2 .

It is a cyclic number.

It is not a de Polignac number, because 252372121 - 2⁷ = 252371993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252372151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53040 + ... + 57601.

It is an arithmetic number, because the mean of its divisors is an integer number (63121261).

Almost surely, 2^252372121 is an apocalyptic number.

It is an amenable number.

252372121 is a deficient number, since it is larger than the sum of its proper divisors (112923).

252372121 is a wasteful number, since it uses less digits than its factorization.

252372121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112922.

The product of its digits is 1680, while the sum is 25.

The square root of 252372121 is about 15886.2242524774. The cubic root of 252372121 is about 631.9467129470.

The spelling of 252372121 in words is "two hundred fifty-two million, three hundred seventy-two thousand, one hundred twenty-one".