130725557 has 4 divisors (see below), whose sum is σ = 131410176. Its totient is φ = 130040940.

The previous prime is 130725541. The next prime is 130725559. The reversal of 130725557 is 755527031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130725557 - 2⁴ = 130725541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130725559) 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 3 ways as a sum of consecutive naturals, for example, 342023 + ... + 342404.

It is an arithmetic number, because the mean of its divisors is an integer number (32852544).

Almost surely, 2^130725557 is an apocalyptic number.

It is an amenable number.

130725557 is a deficient number, since it is larger than the sum of its proper divisors (684619).

130725557 is an equidigital number, since it uses as much as digits as its factorization.

130725557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684618.

The product of its (nonzero) digits is 36750, while the sum is 35.

The square root of 130725557 is about 11433.5277583080. The cubic root of 130725557 is about 507.5203961809.

The spelling of 130725557 in words is "one hundred thirty million, seven hundred twenty-five thousand, five hundred fifty-seven".