130688693 has 4 divisors (see below), whose sum is σ = 130928160. Its totient is φ = 130449228.

The previous prime is 130688687. The next prime is 130688713. The reversal of 130688693 is 396886031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 396886031 = 3391 ⋅117041.

It is a cyclic number.

It is not a de Polignac number, because 130688693 - 2⁶ = 130688629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130688603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118913 + ... + 120006.

It is an arithmetic number, because the mean of its divisors is an integer number (32732040).

Almost surely, 2^130688693 is an apocalyptic number.

It is an amenable number.

130688693 is a deficient number, since it is larger than the sum of its proper divisors (239467).

130688693 is an equidigital number, since it uses as much as digits as its factorization.

130688693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239466.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 130688693 is about 11431.9155437748. The cubic root of 130688693 is about 507.4726855643.

The spelling of 130688693 in words is "one hundred thirty million, six hundred eighty-eight thousand, six hundred ninety-three".