131970744 has 24 divisors (see below), whose sum is σ = 357420960. Its totient is φ = 43990224.

The previous prime is 131970743. The next prime is 131970791. The reversal of 131970744 is 447079131.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 131970699 and 131970708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131970743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 916392 + ... + 916535.

It is an arithmetic number, because the mean of its divisors is an integer number (14892540).

Almost surely, 2^131970744 is an apocalyptic number.

It is an amenable number.

131970744 is an abundant number, since it is smaller than the sum of its proper divisors (225450216).

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

131970744 is a wasteful number, since it uses less digits than its factorization.

131970744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832939 (or 1832932 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 131970744 is about 11487.8520185455. The cubic root of 131970744 is about 509.1267177425.

The spelling of 131970744 in words is "one hundred thirty-one million, nine hundred seventy thousand, seven hundred forty-four".