130661291 has 2 divisors, whose sum is σ = 130661292. Its totient is φ = 130661290.

The previous prime is 130661287. The next prime is 130661353. The reversal of 130661291 is 192166031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130661291 - 2² = 130661287 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (130661221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65330645 + 65330646.

It is an arithmetic number, because the mean of its divisors is an integer number (65330646).

Almost surely, 2^130661291 is an apocalyptic number.

130661291 is a deficient number, since it is larger than the sum of its proper divisors (1).

130661291 is an equidigital number, since it uses as much as digits as its factorization.

130661291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 130661291 is about 11430.7169941347. The cubic root of 130661291 is about 507.4372151697.

The spelling of 130661291 in words is "one hundred thirty million, six hundred sixty-one thousand, two hundred ninety-one".