131245995 has 8 divisors (see below), whose sum is σ = 209993616. Its totient is φ = 69997856.

The previous prime is 131245979. The next prime is 131246021. The reversal of 131245995 is 599542131.

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

It is a cyclic number.

It is not a de Polignac number, because 131245995 - 2⁴ = 131245979 is a prime.

It is a super-2 number, since 2×131245995² = 34451022407080050, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4374852 + ... + 4374881.

It is an arithmetic number, because the mean of its divisors is an integer number (26249202).

Almost surely, 2^131245995 is an apocalyptic number.

131245995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131245995 is a deficient number, since it is larger than the sum of its proper divisors (78747621).

131245995 is an equidigital number, since it uses as much as digits as its factorization.

131245995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8749741.

The product of its digits is 48600, while the sum is 39.

The square root of 131245995 is about 11456.2644435261. The cubic root of 131245995 is about 508.1930092534.

The spelling of 131245995 in words is "one hundred thirty-one million, two hundred forty-five thousand, nine hundred ninety-five".