131102580 has 96 divisors (see below), whose sum is σ = 421392384. Its totient is φ = 29833344.

The previous prime is 131102519. The next prime is 131102597. The reversal of 131102580 is 85201131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118309 + ... + 119411.

It is an arithmetic number, because the mean of its divisors is an integer number (4389504).

Almost surely, 2^131102580 is an apocalyptic number.

131102580 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 131102580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210696192).

131102580 is an abundant number, since it is smaller than the sum of its proper divisors (290289804).

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

131102580 is a wasteful number, since it uses less digits than its factorization.

131102580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 131102580 is about 11450.0034934492. The cubic root of 131102580 is about 508.0078377281.

The spelling of 131102580 in words is "one hundred thirty-one million, one hundred two thousand, five hundred eighty".