130363721 has 2 divisors, whose sum is σ = 130363722. Its totient is φ = 130363720.

The previous prime is 130363703. The next prime is 130363757. The reversal of 130363721 is 127363031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80802121 + 49561600 = 8989^2 + 7040^2 .

It is a cyclic number.

It is not a de Polignac number, because 130363721 - 2⁶ = 130363657 is a prime.

It is not a weakly prime, because it can be changed into another prime (130363781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65181860 + 65181861.

It is an arithmetic number, because the mean of its divisors is an integer number (65181861).

Almost surely, 2^130363721 is an apocalyptic number.

It is an amenable number.

130363721 is a deficient number, since it is larger than the sum of its proper divisors (1).

130363721 is an equidigital number, since it uses as much as digits as its factorization.

130363721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 130363721 is about 11417.6933309666. The cubic root of 130363721 is about 507.0517073052.

The spelling of 130363721 in words is "one hundred thirty million, three hundred sixty-three thousand, seven hundred twenty-one".