131256670 has 8 divisors (see below), whose sum is σ = 236262024. Its totient is φ = 52502664.

The previous prime is 131256661. The next prime is 131256679. The reversal of 131256670 is 76652131.

131256670 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (131256661) and next prime (131256679).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131256679) 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, 6562824 + ... + 6562843.

It is an arithmetic number, because the mean of its divisors is an integer number (29532753).

Almost surely, 2^131256670 is an apocalyptic number.

131256670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131256670 is a deficient number, since it is larger than the sum of its proper divisors (105005354).

131256670 is a wasteful number, since it uses less digits than its factorization.

131256670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13125674.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 131256670 is about 11456.7303363569. The cubic root of 131256670 is about 508.2067869774.

The spelling of 131256670 in words is "one hundred thirty-one million, two hundred fifty-six thousand, six hundred seventy".