131256067 has 4 divisors (see below), whose sum is σ = 133104816. Its totient is φ = 129407320.

The previous prime is 131256053. The next prime is 131256091. The reversal of 131256067 is 760652131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131256067 - 2⁷ = 131255939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131256467) 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, 924268 + ... + 924409.

It is an arithmetic number, because the mean of its divisors is an integer number (33276204).

Almost surely, 2^131256067 is an apocalyptic number.

131256067 is a deficient number, since it is larger than the sum of its proper divisors (1848749).

131256067 is an equidigital number, since it uses as much as digits as its factorization.

131256067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848748.

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

The square root of 131256067 is about 11456.7040199178. The cubic root of 131256067 is about 508.2060087334.

The spelling of 131256067 in words is "one hundred thirty-one million, two hundred fifty-six thousand, sixty-seven".