130725491 has 16 divisors (see below), whose sum is σ = 154640640. Its totient is φ = 109343520.

The previous prime is 130725479. The next prime is 130725503. The reversal of 130725491 is 194527031.

It is an interprime number because it is at equal distance from previous prime (130725479) and next prime (130725503).

It is a de Polignac number, because none of the positive numbers 2^k-130725491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130725421) 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 15 ways as a sum of consecutive naturals, for example, 5825 + ... + 17186.

It is an arithmetic number, because the mean of its divisors is an integer number (9665040).

Almost surely, 2^130725491 is an apocalyptic number.

130725491 is a deficient number, since it is larger than the sum of its proper divisors (23915149).

130725491 is a wasteful number, since it uses less digits than its factorization.

130725491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23066.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 130725491 is about 11433.5248720594. The cubic root of 130725491 is about 507.5203107695.

The spelling of 130725491 in words is "one hundred thirty million, seven hundred twenty-five thousand, four hundred ninety-one".