131552785 has 16 divisors (see below), whose sum is σ = 194294016. Its totient is φ = 83268288.

The previous prime is 131552779. The next prime is 131552807. The reversal of 131552785 is 587255131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131552785 - 2⁷ = 131552657 is a prime.

It is a super-2 number, since 2×131552785² = 34612270482512450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144109 + ... + 145018.

It is an arithmetic number, because the mean of its divisors is an integer number (12143376).

Almost surely, 2^131552785 is an apocalyptic number.

It is an amenable number.

131552785 is a deficient number, since it is larger than the sum of its proper divisors (62741231).

131552785 is a wasteful number, since it uses less digits than its factorization.

131552785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289152.

The product of its digits is 42000, while the sum is 37.

The square root of 131552785 is about 11469.6462456346. The cubic root of 131552785 is about 508.5886713867.

The spelling of 131552785 in words is "one hundred thirty-one million, five hundred fifty-two thousand, seven hundred eighty-five".