130785891 has 8 divisors (see below), whose sum is σ = 177240144. Its totient is φ = 85761120.

The previous prime is 130785887. The next prime is 130785901. The reversal of 130785891 is 198587031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130785891 - 2² = 130785887 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (130785091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357156 + ... + 357521.

It is an arithmetic number, because the mean of its divisors is an integer number (22155018).

Almost surely, 2^130785891 is an apocalyptic number.

130785891 is a deficient number, since it is larger than the sum of its proper divisors (46454253).

130785891 is an equidigital number, since it uses as much as digits as its factorization.

130785891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714741.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 130785891 is about 11436.1659221961. The cubic root of 130785891 is about 507.5984631039.

The spelling of 130785891 in words is "one hundred thirty million, seven hundred eighty-five thousand, eight hundred ninety-one".