130601557 has 2 divisors, whose sum is σ = 130601558. Its totient is φ = 130601556.

The previous prime is 130601551. The next prime is 130601617. The reversal of 130601557 is 755106031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89756676 + 40844881 = 9474^2 + 6391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130601557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130601551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65300778 + 65300779.

It is an arithmetic number, because the mean of its divisors is an integer number (65300779).

Almost surely, 2^130601557 is an apocalyptic number.

It is an amenable number.

130601557 is a deficient number, since it is larger than the sum of its proper divisors (1).

130601557 is an equidigital number, since it uses as much as digits as its factorization.

130601557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 130601557 is about 11428.1038234696. The cubic root of 130601557 is about 507.3598755724.

Adding to 130601557 its reverse (755106031), we get a palindrome (885707588).

The spelling of 130601557 in words is "one hundred thirty million, six hundred one thousand, five hundred fifty-seven".