252122131 has 4 divisors (see below), whose sum is σ = 252836712. Its totient is φ = 251407552.

The previous prime is 252122119. The next prime is 252122149. The reversal of 252122131 is 131221252.

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

It is a cyclic number.

It is not a de Polignac number, because 252122131 - 2⁵ = 252122099 is a prime.

It is a super-2 number, since 2×252122131² = 127131137879962322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252122099 and 252122108.

It is not an unprimeable number, because it can be changed into a prime (252122111) 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, 356761 + ... + 357466.

It is an arithmetic number, because the mean of its divisors is an integer number (63209178).

Almost surely, 2^252122131 is an apocalyptic number.

252122131 is a deficient number, since it is larger than the sum of its proper divisors (714581).

252122131 is an equidigital number, since it uses as much as digits as its factorization.

252122131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714580.

The product of its digits is 240, while the sum is 19.

The square root of 252122131 is about 15878.3541653409. The cubic root of 252122131 is about 631.7379834065.

Adding to 252122131 its reverse (131221252), we get a palindrome (383343383).

It can be divided in two parts, 2521221 and 31, that added together give a palindrome (2521252).

The spelling of 252122131 in words is "two hundred fifty-two million, one hundred twenty-two thousand, one hundred thirty-one".