130512251 has 2 divisors, whose sum is σ = 130512252. Its totient is φ = 130512250.

The previous prime is 130512233. The next prime is 130512253. The reversal of 130512251 is 152215031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130512251 - 2¹⁴ = 130495867 is a prime.

It is a super-2 number, since 2×130512251² = 34066895322174002, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 130512253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130512253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65256125 + 65256126.

It is an arithmetic number, because the mean of its divisors is an integer number (65256126).

Almost surely, 2^130512251 is an apocalyptic number.

130512251 is a deficient number, since it is larger than the sum of its proper divisors (1).

130512251 is an equidigital number, since it uses as much as digits as its factorization.

130512251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 130512251 is about 11424.1958579149. The cubic root of 130512251 is about 507.2442041266.

Adding to 130512251 its reverse (152215031), we get a palindrome (282727282).

The spelling of 130512251 in words is "one hundred thirty million, five hundred twelve thousand, two hundred fifty-one".