131013378 has 24 divisors (see below), whose sum is σ = 293020416. Its totient is φ = 42262200.

The previous prime is 131013361. The next prime is 131013413. The reversal of 131013378 is 873310131.

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, 116838 + ... + 117953.

It is an arithmetic number, because the mean of its divisors is an integer number (12209184).

Almost surely, 2^131013378 is an apocalyptic number.

131013378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

131013378 is an abundant number, since it is smaller than the sum of its proper divisors (162007038).

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

131013378 is a wasteful number, since it uses less digits than its factorization.

131013378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234830 (or 234827 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 131013378 is about 11446.1075479833. The cubic root of 131013378 is about 507.8925956621.

The spelling of 131013378 in words is "one hundred thirty-one million, thirteen thousand, three hundred seventy-eight".