131481400 has 48 divisors (see below), whose sum is σ = 323684640. Its totient is φ = 49497600.

The previous prime is 131481397. The next prime is 131481431. The reversal of 131481400 is 4184131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15936 + ... + 22735.

It is an arithmetic number, because the mean of its divisors is an integer number (6743430).

Almost surely, 2^131481400 is an apocalyptic number.

131481400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131481400 is an abundant number, since it is smaller than the sum of its proper divisors (192203240).

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

131481400 is a wasteful number, since it uses less digits than its factorization.

131481400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38704 (or 38695 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 131481400 is about 11466.5339139602. The cubic root of 131481400 is about 508.4966622585.

The spelling of 131481400 in words is "one hundred thirty-one million, four hundred eighty-one thousand, four hundred".