131456879 has 2 divisors, whose sum is σ = 131456880. Its totient is φ = 131456878.

The previous prime is 131456863. The next prime is 131456911. The reversal of 131456879 is 978654131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131456879 - 2⁴ = 131456863 is a prime.

It is a super-2 number, since 2×131456879² = 34561822072841282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131456579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65728439 + 65728440.

It is an arithmetic number, because the mean of its divisors is an integer number (65728440).

Almost surely, 2^131456879 is an apocalyptic number.

131456879 is a deficient number, since it is larger than the sum of its proper divisors (1).

131456879 is an equidigital number, since it uses as much as digits as its factorization.

131456879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 131456879 is about 11465.4646220727. The cubic root of 131456879 is about 508.4650491130.

The spelling of 131456879 in words is "one hundred thirty-one million, four hundred fifty-six thousand, eight hundred seventy-nine".