252180131 has 4 divisors (see below), whose sum is σ = 288205872. Its totient is φ = 216154392.

The previous prime is 252180127. The next prime is 252180139. The reversal of 252180131 is 131081252.

It is a happy number.

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 252180131 - 2² = 252180127 is a prime.

It is a super-2 number, since 2×252180131² = 127189636942354322, 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 = 252180097 and 252180106.

It is not an unprimeable number, because it can be changed into a prime (252180139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18012860 + ... + 18012873.

It is an arithmetic number, because the mean of its divisors is an integer number (72051468).

Almost surely, 2^252180131 is an apocalyptic number.

252180131 is a deficient number, since it is larger than the sum of its proper divisors (36025741).

252180131 is an equidigital number, since it uses as much as digits as its factorization.

252180131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36025740.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 252180131 is about 15880.1804460781. The cubic root of 252180131 is about 631.7864228851.

The spelling of 252180131 in words is "two hundred fifty-two million, one hundred eighty thousand, one hundred thirty-one".