129473692 has 12 divisors (see below), whose sum is σ = 229309416. Its totient is φ = 63956720.

The previous prime is 129473651. The next prime is 129473711. The reversal of 129473692 is 296374921.

It is a super-2 number, since 2×129473692² = 33526873840221728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194659 + ... + 195322.

It is an arithmetic number, because the mean of its divisors is an integer number (19109118).

Almost surely, 2^129473692 is an apocalyptic number.

It is an amenable number.

129473692 is a deficient number, since it is larger than the sum of its proper divisors (99835724).

129473692 is a wasteful number, since it uses less digits than its factorization.

129473692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390068 (or 390066 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 129473692 is about 11378.6507108708. The cubic root of 129473692 is about 505.8951440567.

The spelling of 129473692 in words is "one hundred twenty-nine million, four hundred seventy-three thousand, six hundred ninety-two".