131813855 has 8 divisors (see below), whose sum is σ = 158504352. Its totient is φ = 105232608.

The previous prime is 131813833. The next prime is 131813867. The reversal of 131813855 is 558318131.

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

It is a cyclic number.

It is not a de Polignac number, because 131813855 - 2¹⁰ = 131812831 is a prime.

It is a super-2 number, since 2×131813855² = 34749784739922050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24632 + ... + 29501.

It is an arithmetic number, because the mean of its divisors is an integer number (19813044).

Almost surely, 2^131813855 is an apocalyptic number.

131813855 is a deficient number, since it is larger than the sum of its proper divisors (26690497).

131813855 is an equidigital number, since it uses as much as digits as its factorization.

131813855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54625.

The product of its digits is 14400, while the sum is 35.

The square root of 131813855 is about 11481.0215137853. The cubic root of 131813855 is about 508.9248849905.

The spelling of 131813855 in words is "one hundred thirty-one million, eight hundred thirteen thousand, eight hundred fifty-five".