130144991 has 2 divisors, whose sum is σ = 130144992. Its totient is φ = 130144990.

The previous prime is 130144969. The next prime is 130145009. The reversal of 130144991 is 199441031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130144991 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130144591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65072495 + 65072496.

It is an arithmetic number, because the mean of its divisors is an integer number (65072496).

Almost surely, 2^130144991 is an apocalyptic number.

130144991 is a deficient number, since it is larger than the sum of its proper divisors (1).

130144991 is an equidigital number, since it uses as much as digits as its factorization.

130144991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 130144991 is about 11408.1107550725. The cubic root of 130144991 is about 506.7679639819.

The spelling of 130144991 in words is "one hundred thirty million, one hundred forty-four thousand, nine hundred ninety-one".