131355400 has 48 divisors (see below), whose sum is σ = 333170640. Its totient is φ = 47764800.

The previous prime is 131355373. The next prime is 131355409. The reversal of 131355400 is 4553131.

It is a happy number.

It is a super-2 number, since 2×131355400² = 34508482218320000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (131355409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27654 + ... + 32053.

It is an arithmetic number, because the mean of its divisors is an integer number (6941055).

Almost surely, 2^131355400 is an apocalyptic number.

131355400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131355400 is an abundant number, since it is smaller than the sum of its proper divisors (201815240).

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

131355400 is a wasteful number, since it uses less digits than its factorization.

131355400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59734 (or 59725 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 131355400 is about 11461.0383473750. The cubic root of 131355400 is about 508.3341777883.

The spelling of 131355400 in words is "one hundred thirty-one million, three hundred fifty-five thousand, four hundred".