130047257 has 2 divisors, whose sum is σ = 130047258. Its totient is φ = 130047256.

The previous prime is 130047251. The next prime is 130047271. The reversal of 130047257 is 752740031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76230361 + 53816896 = 8731^2 + 7336^2 .

It is a cyclic number.

It is not a de Polignac number, because 130047257 - 2⁴ = 130047241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130047251) 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 as a sum of consecutive naturals, namely, 65023628 + 65023629.

It is an arithmetic number, because the mean of its divisors is an integer number (65023629).

Almost surely, 2^130047257 is an apocalyptic number.

It is an amenable number.

130047257 is a deficient number, since it is larger than the sum of its proper divisors (1).

130047257 is an equidigital number, since it uses as much as digits as its factorization.

130047257 is an odious number, because the sum of its binary digits is odd.

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

The square root of 130047257 is about 11403.8264192332. The cubic root of 130047257 is about 506.6410776454.

Adding to 130047257 its reverse (752740031), we get a palindrome (882787288).

The spelling of 130047257 in words is "one hundred thirty million, forty-seven thousand, two hundred fifty-seven".