130731251 has 8 divisors (see below), whose sum is σ = 149977344. Its totient is φ = 111627720.

The previous prime is 130731239. The next prime is 130731277. The reversal of 130731251 is 152137031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130731251 - 2⁶ = 130731187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130730251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33665 + ... + 37346.

It is an arithmetic number, because the mean of its divisors is an integer number (18747168).

Almost surely, 2^130731251 is an apocalyptic number.

130731251 is a deficient number, since it is larger than the sum of its proper divisors (19246093).

130731251 is an equidigital number, since it uses as much as digits as its factorization.

130731251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71281.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 130731251 is about 11433.7767601086. The cubic root of 130731251 is about 507.5277647456.

Adding to 130731251 its reverse (152137031), we get a palindrome (282868282).

The spelling of 130731251 in words is "one hundred thirty million, seven hundred thirty-one thousand, two hundred fifty-one".