131252589 has 32 divisors (see below), whose sum is σ = 220438400. Its totient is φ = 76515840.

The previous prime is 131252587. The next prime is 131252593. The reversal of 131252589 is 985252131.

131252589 is a `hidden beast` number, since 13 + 12 + 52 + 589 = 666.

It is not a de Polignac number, because 131252589 - 2¹ = 131252587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131252587) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3172 + ... + 16509.

It is an arithmetic number, because the mean of its divisors is an integer number (6888700).

Almost surely, 2^131252589 is an apocalyptic number.

131252589 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

131252589 is a deficient number, since it is larger than the sum of its proper divisors (89185811).

131252589 is a wasteful number, since it uses less digits than its factorization.

131252589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19722 (or 19716 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 131252589 is about 11456.5522300560. The cubic root of 131252589 is about 508.2015199095.

It can be divided in two parts, 131252 and 589, that added together give a triangular number (131841 = T₅₁₃).

The spelling of 131252589 in words is "one hundred thirty-one million, two hundred fifty-two thousand, five hundred eighty-nine".