131478450 has 24 divisors (see below), whose sum is σ = 326066928. Its totient is φ = 35060880.

The previous prime is 131478449. The next prime is 131478463. The reversal of 131478450 is 54874131.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438112 + ... + 438411.

It is an arithmetic number, because the mean of its divisors is an integer number (13586122).

Almost surely, 2^131478450 is an apocalyptic number.

131478450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131478450 is an abundant number, since it is smaller than the sum of its proper divisors (194588478).

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

131478450 is a wasteful number, since it uses less digits than its factorization.

131478450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876538 (or 876533 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 131478450 is about 11466.4052780285. The cubic root of 131478450 is about 508.4928592456.

The spelling of 131478450 in words is "one hundred thirty-one million, four hundred seventy-eight thousand, four hundred fifty".