131285965 has 8 divisors (see below), whose sum is σ = 157886208. Its totient is φ = 104800080.

The previous prime is 131285933. The next prime is 131285971. The reversal of 131285965 is 569582131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131285965 - 2⁵ = 131285933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26041 + ... + 30670.

It is an arithmetic number, because the mean of its divisors is an integer number (19735776).

Almost surely, 2^131285965 is an apocalyptic number.

It is an amenable number.

131285965 is a deficient number, since it is larger than the sum of its proper divisors (26600243).

131285965 is an equidigital number, since it uses as much as digits as its factorization.

131285965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57179.

The product of its digits is 64800, while the sum is 40.

The square root of 131285965 is about 11458.0087711609. The cubic root of 131285965 is about 508.2445928285.

The spelling of 131285965 in words is "one hundred thirty-one million, two hundred eighty-five thousand, nine hundred sixty-five".