130731187 has 2 divisors, whose sum is σ = 130731188. Its totient is φ = 130731186.

The previous prime is 130731179. The next prime is 130731193. The reversal of 130731187 is 781137031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130731187 - 2³ = 130731179 is a prime.

It is not a weakly prime, because it can be changed into another prime (130734187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65365593 + 65365594.

It is an arithmetic number, because the mean of its divisors is an integer number (65365594).

Almost surely, 2^130731187 is an apocalyptic number.

130731187 is a deficient number, since it is larger than the sum of its proper divisors (1).

130731187 is an equidigital number, since it uses as much as digits as its factorization.

130731187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 130731187 is about 11433.7739613830. The cubic root of 130731187 is about 507.5276819249.

The spelling of 130731187 in words is "one hundred thirty million, seven hundred thirty-one thousand, one hundred eighty-seven".