130509091 has 2 divisors, whose sum is σ = 130509092. Its totient is φ = 130509090.

The previous prime is 130509089. The next prime is 130509131. The reversal of 130509091 is 190905031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130509091 - 2¹ = 130509089 is a prime.

Together with 130509089, it forms a pair of twin primes.

It is equal to p_7405363 and since 130509091 and 7405363 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (130509031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65254545 + 65254546.

It is an arithmetic number, because the mean of its divisors is an integer number (65254546).

Almost surely, 2^130509091 is an apocalyptic number.

130509091 is a deficient number, since it is larger than the sum of its proper divisors (1).

130509091 is an equidigital number, since it uses as much as digits as its factorization.

130509091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 130509091 is about 11424.0575541267. The cubic root of 130509091 is about 507.2401102462.

The spelling of 130509091 in words is "one hundred thirty million, five hundred nine thousand, ninety-one".