131808250 has 64 divisors (see below), whose sum is σ = 284993280. Its totient is φ = 44712000.

The previous prime is 131808227. The next prime is 131808253. The reversal of 131808250 is 52808131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131808253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190405 + ... + 191095.

It is an arithmetic number, because the mean of its divisors is an integer number (4453020).

Almost surely, 2^131808250 is an apocalyptic number.

131808250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131808250 is an abundant number, since it is smaller than the sum of its proper divisors (153185030).

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

131808250 is a wasteful number, since it uses less digits than its factorization.

131808250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 131808250 is about 11480.7774127016. Note that the first 3 decimals coincide. The cubic root of 131808250 is about 508.9176713725.

The spelling of 131808250 in words is "one hundred thirty-one million, eight hundred eight thousand, two hundred fifty".