131089860 has 192 divisors, whose sum is σ = 460857600. Its totient is φ = 30643200.

The previous prime is 131089859. The next prime is 131089867. The reversal of 131089860 is 68980131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131089867) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 171880 + ... + 172640.

It is an arithmetic number, because the mean of its divisors is an integer number (2400300).

Almost surely, 2^131089860 is an apocalyptic number.

131089860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131089860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230428800).

131089860 is an abundant number, since it is smaller than the sum of its proper divisors (329767740).

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

131089860 is a wasteful number, since it uses less digits than its factorization.

131089860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 131089860 is about 11449.4480216297. The cubic root of 131089860 is about 507.9914076708.

The spelling of 131089860 in words is "one hundred thirty-one million, eighty-nine thousand, eight hundred sixty".