130833257 has 2 divisors, whose sum is σ = 130833258. Its totient is φ = 130833256.

The previous prime is 130833253. The next prime is 130833277. The reversal of 130833257 is 752338031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93915481 + 36917776 = 9691^2 + 6076^2 .

It is an emirp because it is prime and its reverse (752338031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130833257 - 2² = 130833253 is a prime.

It is a super-2 number, since 2×130833257² = 34234682274456098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130833251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65416628 + 65416629.

It is an arithmetic number, because the mean of its divisors is an integer number (65416629).

Almost surely, 2^130833257 is an apocalyptic number.

It is an amenable number.

130833257 is a deficient number, since it is larger than the sum of its proper divisors (1).

130833257 is an equidigital number, since it uses as much as digits as its factorization.

130833257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 130833257 is about 11438.2366210881. The cubic root of 130833257 is about 507.6597337469.

The spelling of 130833257 in words is "one hundred thirty million, eight hundred thirty-three thousand, two hundred fifty-seven".