131380434 has 32 divisors (see below), whose sum is σ = 296322240. Its totient is φ = 43138656.

The previous prime is 131380409. The next prime is 131380489. The reversal of 131380434 is 434083131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 131380398 and 131380407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14539 + ... + 21774.

It is an arithmetic number, because the mean of its divisors is an integer number (9260070).

Almost surely, 2^131380434 is an apocalyptic number.

131380434 is an abundant number, since it is smaller than the sum of its proper divisors (164941806).

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

131380434 is a wasteful number, since it uses less digits than its factorization.

131380434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36391 (or 36385 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 131380434 is about 11462.1304302472. The cubic root of 131380434 is about 508.3664688842.

The spelling of 131380434 in words is "one hundred thirty-one million, three hundred eighty thousand, four hundred thirty-four".