131151400 has 24 divisors (see below), whose sum is σ = 304927470. Its totient is φ = 52460480.

The previous prime is 131151389. The next prime is 131151401. The reversal of 131151400 is 4151131.

It can be written as a sum of positive squares in 3 ways, for example, as 110376036 + 20775364 = 10506^2 + 4558^2 .

It is not an unprimeable number, because it can be changed into a prime (131151401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 327679 + ... + 328078.

Almost surely, 2^131151400 is an apocalyptic number.

131151400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131151400 is an abundant number, since it is smaller than the sum of its proper divisors (173776070).

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

131151400 is a wasteful number, since it uses less digits than its factorization.

131151400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655773 (or 655764 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 131151400 is about 11452.1351720978. The cubic root of 131151400 is about 508.0708872496.

The spelling of 131151400 in words is "one hundred thirty-one million, one hundred fifty-one thousand, four hundred".