131705404 has 12 divisors (see below), whose sum is σ = 233074800. Its totient is φ = 65112608.

The previous prime is 131705401. The next prime is 131705417. The reversal of 131705404 is 404507131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131705401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184624 + ... + 185335.

It is an arithmetic number, because the mean of its divisors is an integer number (19422900).

Almost surely, 2^131705404 is an apocalyptic number.

It is an amenable number.

131705404 is a deficient number, since it is larger than the sum of its proper divisors (101369396).

131705404 is a wasteful number, since it uses less digits than its factorization.

131705404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370052 (or 370050 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 131705404 is about 11476.2974865590. The cubic root of 131705404 is about 508.7852725636.

The spelling of 131705404 in words is "one hundred thirty-one million, seven hundred five thousand, four hundred four".