130257569 has 4 divisors (see below), whose sum is σ = 140277396. Its totient is φ = 120237744.

The previous prime is 130257557. The next prime is 130257613. The reversal of 130257569 is 965752031.

It is a happy number.

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 46076944 + 84180625 = 6788^2 + 9175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130257569 is a prime.

It is a super-2 number, since 2×130257569² = 33934068563579522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130257529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5009894 + ... + 5009919.

It is an arithmetic number, because the mean of its divisors is an integer number (35069349).

Almost surely, 2^130257569 is an apocalyptic number.

It is an amenable number.

130257569 is a deficient number, since it is larger than the sum of its proper divisors (10019827).

130257569 is a wasteful number, since it uses less digits than its factorization.

130257569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10019826.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 130257569 is about 11413.0438096066. The cubic root of 130257569 is about 506.9140433181.

The spelling of 130257569 in words is "one hundred thirty million, two hundred fifty-seven thousand, five hundred sixty-nine".