130691 has 6 divisors (see below), whose sum is σ = 143892. Its totient is φ = 117720.

The previous prime is 130687. The next prime is 130693. The reversal of 130691 is 196031.

It is not a de Polignac number, because 130691 - 2² = 130687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1145 + ... + 1253.

It is an arithmetic number, because the mean of its divisors is an integer number (23982).

2¹³⁰⁶⁹¹ is an apocalyptic number.

130691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130691 is a deficient number, since it is larger than the sum of its proper divisors (13201).

130691 is an equidigital number, since it uses as much as digits as its factorization.

130691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 130691 is about 361.5121021487. The cubic root of 130691 is about 50.7475671624.

The spelling of 130691 in words is "one hundred thirty thousand, six hundred ninety-one".