131456705 has 16 divisors (see below), whose sum is σ = 159667200. Its totient is φ = 103895040.

The previous prime is 131456693. The next prime is 131456723. The reversal of 131456705 is 507654131.

It is a de Polignac number, because none of the positive numbers 2^k-131456705 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 170561 + ... + 171329.

It is an arithmetic number, because the mean of its divisors is an integer number (9979200).

Almost surely, 2^131456705 is an apocalyptic number.

It is an amenable number.

131456705 is a deficient number, since it is larger than the sum of its proper divisors (28210495).

131456705 is a wasteful number, since it uses less digits than its factorization.

131456705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 131456705 is about 11465.4570340654. The cubic root of 131456705 is about 508.4648247734.

The spelling of 131456705 in words is "one hundred thirty-one million, four hundred fifty-six thousand, seven hundred five".