130620657 has 16 divisors (see below), whose sum is σ = 182016000. Its totient is φ = 83164752.

The previous prime is 130620599. The next prime is 130620671. The reversal of 130620657 is 756026031.

It is not a de Polignac number, because 130620657 - 2⁶ = 130620593 is a prime.

It is a super-2 number, since 2×130620657² = 34123512070223298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130620697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64344 + ... + 66342.

It is an arithmetic number, because the mean of its divisors is an integer number (11376000).

Almost surely, 2^130620657 is an apocalyptic number.

It is an amenable number.

130620657 is a deficient number, since it is larger than the sum of its proper divisors (51395343).

130620657 is a wasteful number, since it uses less digits than its factorization.

130620657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 130620657 is about 11428.9394521102. The cubic root of 130620657 is about 507.3846075421.

Adding to 130620657 its reverse (756026031), we get a palindrome (886646688).

The spelling of 130620657 in words is "one hundred thirty million, six hundred twenty thousand, six hundred fifty-seven".