130430257 has 2 divisors, whose sum is σ = 130430258. Its totient is φ = 130430256.

The previous prime is 130430249. The next prime is 130430303. The reversal of 130430257 is 752034031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95961616 + 34468641 = 9796^2 + 5871^2 .

It is a cyclic number.

It is not a de Polignac number, because 130430257 - 2³ = 130430249 is a prime.

It is not a weakly prime, because it can be changed into another prime (130430057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65215128 + 65215129.

It is an arithmetic number, because the mean of its divisors is an integer number (65215129).

Almost surely, 2^130430257 is an apocalyptic number.

It is an amenable number.

130430257 is a deficient number, since it is larger than the sum of its proper divisors (1).

130430257 is an equidigital number, since it uses as much as digits as its factorization.

130430257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 130430257 is about 11420.6066826592. The cubic root of 130430257 is about 507.1379569000.

Adding to 130430257 its reverse (752034031), we get a palindrome (882464288).

The spelling of 130430257 in words is "one hundred thirty million, four hundred thirty thousand, two hundred fifty-seven".