252989131 has 4 divisors (see below), whose sum is σ = 253127952. Its totient is φ = 252850312.

The previous prime is 252989129. The next prime is 252989153. The reversal of 252989131 is 131989252.

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 252989131 - 2¹ = 252989129 is a prime.

It is a super-2 number, since 2×252989131² = 128007000808270322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252989101) 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, 66640 + ... + 70333.

It is an arithmetic number, because the mean of its divisors is an integer number (63281988).

Almost surely, 2^252989131 is an apocalyptic number.

252989131 is a deficient number, since it is larger than the sum of its proper divisors (138821).

252989131 is a wasteful number, since it uses less digits than its factorization.

252989131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138820.

The product of its digits is 38880, while the sum is 40.

The square root of 252989131 is about 15905.6320528296. The cubic root of 252989131 is about 632.4612971366.

The spelling of 252989131 in words is "two hundred fifty-two million, nine hundred eighty-nine thousand, one hundred thirty-one".