131308890 has 16 divisors (see below), whose sum is σ = 315141408. Its totient is φ = 35015696.

The previous prime is 131308861. The next prime is 131308907. The reversal of 131308890 is 98803131.

It is a super-3 number, since 3×131308890³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2188452 + ... + 2188511.

It is an arithmetic number, because the mean of its divisors is an integer number (19696338).

Almost surely, 2^131308890 is an apocalyptic number.

131308890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131308890 is an abundant number, since it is smaller than the sum of its proper divisors (183832518).

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

131308890 is a wasteful number, since it uses less digits than its factorization.

131308890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4376973.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 131308890 is about 11459.0091194658. The cubic root of 131308890 is about 508.2741741301.

The spelling of 131308890 in words is "one hundred thirty-one million, three hundred eight thousand, eight hundred ninety".