130868191 has 2 divisors, whose sum is σ = 130868192. Its totient is φ = 130868190.

The previous prime is 130868167. The next prime is 130868201. The reversal of 130868191 is 191868031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130868191 - 2⁷ = 130868063 is a prime.

It is a super-2 number, since 2×130868191² = 34252966831224962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130868191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130868131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65434095 + 65434096.

It is an arithmetic number, because the mean of its divisors is an integer number (65434096).

Almost surely, 2^130868191 is an apocalyptic number.

130868191 is a deficient number, since it is larger than the sum of its proper divisors (1).

130868191 is an equidigital number, since it uses as much as digits as its factorization.

130868191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 130868191 is about 11439.7635902146. The cubic root of 130868191 is about 507.7049134087.

The spelling of 130868191 in words is "one hundred thirty million, eight hundred sixty-eight thousand, one hundred ninety-one".