131100885 has 12 divisors (see below), whose sum is σ = 227241612. Its totient is φ = 69920448.

The previous prime is 131100883. The next prime is 131100911. The reversal of 131100885 is 588001131.

It can be written as a sum of positive squares in 2 ways, for example, as 87778161 + 43322724 = 9369^2 + 6582^2 .

It is not a de Polignac number, because 131100885 - 2¹ = 131100883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131100881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1456632 + ... + 1456721.

It is an arithmetic number, because the mean of its divisors is an integer number (18936801).

Almost surely, 2^131100885 is an apocalyptic number.

131100885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131100885 is a deficient number, since it is larger than the sum of its proper divisors (96140727).

131100885 is a wasteful number, since it uses less digits than its factorization.

131100885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913364 (or 2913361 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 131100885 is about 11449.9294757653. The cubic root of 131100885 is about 508.0056484068.

The spelling of 131100885 in words is "one hundred thirty-one million, one hundred thousand, eight hundred eighty-five".