130247057 has 4 divisors (see below), whose sum is σ = 130966836. Its totient is φ = 129527280.

The previous prime is 130246981. The next prime is 130247069. The reversal of 130247057 is 750742031.

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 5612161 + 124634896 = 2369^2 + 11164^2 .

It is a cyclic number.

It is not a de Polignac number, because 130247057 - 2¹⁴ = 130230673 is a prime.

It is a super-2 number, since 2×130247057² = 33928591714322498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130247087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359618 + ... + 359979.

It is an arithmetic number, because the mean of its divisors is an integer number (32741709).

Almost surely, 2^130247057 is an apocalyptic number.

It is an amenable number.

130247057 is a deficient number, since it is larger than the sum of its proper divisors (719779).

130247057 is an equidigital number, since it uses as much as digits as its factorization.

130247057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719778.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 130247057 is about 11412.5832746140. The cubic root of 130247057 is about 506.9004066857.

Adding to 130247057 its reverse (750742031), we get a palindrome (880989088).

The spelling of 130247057 in words is "one hundred thirty million, two hundred forty-seven thousand, fifty-seven".