131081355 has 64 divisors (see below), whose sum is σ = 242104320. Its totient is φ = 67246848.

The previous prime is 131081333. The next prime is 131081389. The reversal of 131081355 is 553180131.

It is not a de Polignac number, because 131081355 - 2⁷ = 131081227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 463044 + ... + 463326.

It is an arithmetic number, because the mean of its divisors is an integer number (3782880).

Almost surely, 2^131081355 is an apocalyptic number.

131081355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131081355 is a deficient number, since it is larger than the sum of its proper divisors (111022965).

131081355 is a wasteful number, since it uses less digits than its factorization.

131081355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 131081355 is about 11449.0766003202. The cubic root of 131081355 is about 507.9804214146.

The spelling of 131081355 in words is "one hundred thirty-one million, eighty-one thousand, three hundred fifty-five".