131593890 has 32 divisors (see below), whose sum is σ = 322548480. Its totient is φ = 34344704.

The previous prime is 131593877. The next prime is 131593901. The reversal of 131593890 is 98395131.

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, 45255 + ... + 48074.

It is an arithmetic number, because the mean of its divisors is an integer number (10079640).

Almost surely, 2^131593890 is an apocalyptic number.

131593890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131593890 is an abundant number, since it is smaller than the sum of its proper divisors (190954590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131593890 is a wasteful number, since it uses less digits than its factorization.

131593890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93386.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 131593890 is about 11471.4380092471. The cubic root of 131593890 is about 508.6416370976.

The spelling of 131593890 in words is "one hundred thirty-one million, five hundred ninety-three thousand, eight hundred ninety".