130515643 has 2 divisors, whose sum is σ = 130515644. Its totient is φ = 130515642.

The previous prime is 130515641. The next prime is 130515659. The reversal of 130515643 is 346515031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130515643 - 2¹ = 130515641 is a prime.

Together with 130515641, it forms a pair of twin primes.

It is equal to p_7405723 and since 130515643 and 7405723 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (130515641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65257821 + 65257822.

It is an arithmetic number, because the mean of its divisors is an integer number (65257822).

Almost surely, 2^130515643 is an apocalyptic number.

130515643 is a deficient number, since it is larger than the sum of its proper divisors (1).

130515643 is an equidigital number, since it uses as much as digits as its factorization.

130515643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 130515643 is about 11424.3443137889. The cubic root of 130515643 is about 507.2485984968.

The spelling of 130515643 in words is "one hundred thirty million, five hundred fifteen thousand, six hundred forty-three".