130731772 has 12 divisors (see below), whose sum is σ = 228886560. Its totient is φ = 65335616.

The previous prime is 130731737. The next prime is 130731773. The reversal of 130731772 is 277137031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130731773) 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, 4173 + ... + 16699.

It is an arithmetic number, because the mean of its divisors is an integer number (19073880).

Almost surely, 2^130731772 is an apocalyptic number.

It is an amenable number.

130731772 is a deficient number, since it is larger than the sum of its proper divisors (98154788).

130731772 is a wasteful number, since it uses less digits than its factorization.

130731772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15140 (or 15138 counting only the distinct ones).

The product of its (nonzero) digits is 6174, while the sum is 31.

The square root of 130731772 is about 11433.7995434589. The cubic root of 130731772 is about 507.5284389573.

The spelling of 130731772 in words is "one hundred thirty million, seven hundred thirty-one thousand, seven hundred seventy-two".