130535257 has 2 divisors, whose sum is σ = 130535258. Its totient is φ = 130535256.

The previous prime is 130535201. The next prime is 130535261. The reversal of 130535257 is 752535031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129140496 + 1394761 = 11364^2 + 1181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130535257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130535857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65267628 + 65267629.

It is an arithmetic number, because the mean of its divisors is an integer number (65267629).

Almost surely, 2^130535257 is an apocalyptic number.

It is an amenable number.

130535257 is a deficient number, since it is larger than the sum of its proper divisors (1).

130535257 is an equidigital number, since it uses as much as digits as its factorization.

130535257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 130535257 is about 11425.2027115496. The cubic root of 130535257 is about 507.2740071386.

The spelling of 130535257 in words is "one hundred thirty million, five hundred thirty-five thousand, two hundred fifty-seven".