130008991 has 16 divisors (see below), whose sum is σ = 152792640. Its totient is φ = 108299520.

The previous prime is 130008913. The next prime is 130009067. The reversal of 130008991 is 199800031.

It is not a de Polignac number, because 130008991 - 2⁷ = 130008863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130008391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90265 + ... + 91693.

It is an arithmetic number, because the mean of its divisors is an integer number (9549540).

Almost surely, 2^130008991 is an apocalyptic number.

130008991 is a deficient number, since it is larger than the sum of its proper divisors (22783649).

130008991 is a wasteful number, since it uses less digits than its factorization.

130008991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 130008991 is about 11402.1485256069. The cubic root of 130008991 is about 506.5913802514.

The spelling of 130008991 in words is "one hundred thirty million, eight thousand, nine hundred ninety-one".