131957855 has 16 divisors (see below), whose sum is σ = 163897344. Its totient is φ = 101886240.

The previous prime is 131957851. The next prime is 131957879. The reversal of 131957855 is 558759131.

It is a happy number.

It is not a de Polignac number, because 131957855 - 2² = 131957851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131957851) by changing a digit.

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, 71474 + ... + 73296.

It is an arithmetic number, because the mean of its divisors is an integer number (10243584).

Almost surely, 2^131957855 is an apocalyptic number.

131957855 is a deficient number, since it is larger than the sum of its proper divisors (31939489).

131957855 is a wasteful number, since it uses less digits than its factorization.

131957855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326.

The product of its digits is 189000, while the sum is 44.

The square root of 131957855 is about 11487.2910209501. The cubic root of 131957855 is about 509.1101424832.

The spelling of 131957855 in words is "one hundred thirty-one million, nine hundred fifty-seven thousand, eight hundred fifty-five".