131956867 has 8 divisors (see below), whose sum is σ = 150998112. Its totient is φ = 112963200.

The previous prime is 131956861. The next prime is 131956879. The reversal of 131956867 is 768659131.

It is a happy number.

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

It is not a de Polignac number, because 131956867 - 2¹¹ = 131954819 is a prime.

It is a super-2 number, since 2×131956867² = 34825229496911378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131956861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5734 + ... + 17227.

It is an arithmetic number, because the mean of its divisors is an integer number (18874764).

Almost surely, 2^131956867 is an apocalyptic number.

131956867 is a deficient number, since it is larger than the sum of its proper divisors (19041245).

131956867 is an equidigital number, since it uses as much as digits as its factorization.

131956867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23789.

The product of its digits is 272160, while the sum is 46.

The square root of 131956867 is about 11487.2480168228. The cubic root of 131956867 is about 509.1088718703.

The spelling of 131956867 in words is "one hundred thirty-one million, nine hundred fifty-six thousand, eight hundred sixty-seven".