130001257 has 2 divisors, whose sum is σ = 130001258. Its totient is φ = 130001256.

The previous prime is 130001251. The next prime is 130001269. The reversal of 130001257 is 752100031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128618281 + 1382976 = 11341^2 + 1176^2 .

It is a cyclic number.

It is not a de Polignac number, because 130001257 - 2¹¹ = 129999209 is a prime.

It is not a weakly prime, because it can be changed into another prime (130001251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65000628 + 65000629.

It is an arithmetic number, because the mean of its divisors is an integer number (65000629).

Almost surely, 2^130001257 is an apocalyptic number.

It is an amenable number.

130001257 is a deficient number, since it is larger than the sum of its proper divisors (1).

130001257 is an equidigital number, since it uses as much as digits as its factorization.

130001257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 130001257 is about 11401.8093739546. The cubic root of 130001257 is about 506.5813346502.

Adding to 130001257 its reverse (752100031), we get a palindrome (882101288).

The spelling of 130001257 in words is "one hundred thirty million, one thousand, two hundred fifty-seven".