130477657 has 4 divisors (see below), whose sum is σ = 130502836. Its totient is φ = 130452480.

The previous prime is 130477603. The next prime is 130477673. The reversal of 130477657 is 756774031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46498761 + 83978896 = 6819^2 + 9164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130477657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130477157) 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, 1644 + ... + 16237.

It is an arithmetic number, because the mean of its divisors is an integer number (32625709).

Almost surely, 2^130477657 is an apocalyptic number.

It is an amenable number.

130477657 is a deficient number, since it is larger than the sum of its proper divisors (25179).

130477657 is an equidigital number, since it uses as much as digits as its factorization.

130477657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25178.

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 130477657 is about 11422.6816903913. The cubic root of 130477657 is about 507.1993829023.

It can be divided in two parts, 1304 and 77657, that added together give a square (78961 = 281²).

The spelling of 130477657 in words is "one hundred thirty million, four hundred seventy-seven thousand, six hundred fifty-seven".