131406380 has 24 divisors (see below), whose sum is σ = 315375648. Its totient is φ = 45053568.

The previous prime is 131406349. The next prime is 131406397. The reversal of 131406380 is 83604131.

131406380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469169 + ... + 469448.

It is an arithmetic number, because the mean of its divisors is an integer number (13140652).

Almost surely, 2^131406380 is an apocalyptic number.

131406380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131406380 is an abundant number, since it is smaller than the sum of its proper divisors (183969268).

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

131406380 is a wasteful number, since it uses less digits than its factorization.

131406380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938633 (or 938631 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 131406380 is about 11463.2621883999. The cubic root of 131406380 is about 508.3999320309.

The spelling of 131406380 in words is "one hundred thirty-one million, four hundred six thousand, three hundred eighty".