130945891 has 12 divisors (see below), whose sum is σ = 142670784. Its totient is φ = 120042000.

The previous prime is 130945889. The next prime is 130945907. The reversal of 130945891 is 198549031.

It is not a de Polignac number, because 130945891 - 2¹ = 130945889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130945811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5341 + ... + 17041.

It is an arithmetic number, because the mean of its divisors is an integer number (11889232).

Almost surely, 2^130945891 is an apocalyptic number.

130945891 is a deficient number, since it is larger than the sum of its proper divisors (11724893).

130945891 is a wasteful number, since it uses less digits than its factorization.

130945891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11770 (or 11751 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 130945891 is about 11443.1591354835. The cubic root of 130945891 is about 507.8053729291.

The spelling of 130945891 in words is "one hundred thirty million, nine hundred forty-five thousand, eight hundred ninety-one".