130318649 has 2 divisors, whose sum is σ = 130318650. Its totient is φ = 130318648.

The previous prime is 130318619. The next prime is 130318687. The reversal of 130318649 is 946813031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70023424 + 60295225 = 8368^2 + 7765^2 .

It is a cyclic number.

It is not a de Polignac number, because 130318649 - 2⁸ = 130318393 is a prime.

It is not a weakly prime, because it can be changed into another prime (130318619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65159324 + 65159325.

It is an arithmetic number, because the mean of its divisors is an integer number (65159325).

Almost surely, 2^130318649 is an apocalyptic number.

It is an amenable number.

130318649 is a deficient number, since it is larger than the sum of its proper divisors (1).

130318649 is an equidigital number, since it uses as much as digits as its factorization.

130318649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 130318649 is about 11415.7193816246. The cubic root of 130318649 is about 506.9932644891.

The spelling of 130318649 in words is "one hundred thirty million, three hundred eighteen thousand, six hundred forty-nine".