131485090 has 32 divisors (see below), whose sum is σ = 258971904. Its totient is φ = 47667840.

The previous prime is 131485063. The next prime is 131485127. The reversal of 131485090 is 90584131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38742 + ... + 41998.

It is an arithmetic number, because the mean of its divisors is an integer number (8092872).

Almost surely, 2^131485090 is an apocalyptic number.

131485090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131485090 is a deficient number, since it is larger than the sum of its proper divisors (127486814).

131485090 is a wasteful number, since it uses less digits than its factorization.

131485090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 131485090 is about 11466.6948158569. The cubic root of 131485090 is about 508.5014191674.

The spelling of 131485090 in words is "one hundred thirty-one million, four hundred eighty-five thousand, ninety".