130356257 has 2 divisors, whose sum is σ = 130356258. Its totient is φ = 130356256.

The previous prime is 130356251. The next prime is 130356287. The reversal of 130356257 is 752653031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108910096 + 21446161 = 10436^2 + 4631^2 .

It is a cyclic number.

It is not a de Polignac number, because 130356257 - 2¹⁰ = 130355233 is a prime.

It is not a weakly prime, because it can be changed into another prime (130356251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65178128 + 65178129.

It is an arithmetic number, because the mean of its divisors is an integer number (65178129).

Almost surely, 2^130356257 is an apocalyptic number.

It is an amenable number.

130356257 is a deficient number, since it is larger than the sum of its proper divisors (1).

130356257 is an equidigital number, since it uses as much as digits as its factorization.

130356257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 130356257 is about 11417.3664651705. The cubic root of 130356257 is about 507.0420300060.

The spelling of 130356257 in words is "one hundred thirty million, three hundred fifty-six thousand, two hundred fifty-seven".