129692 has 6 divisors (see below), whose sum is σ = 226968. Its totient is φ = 64844.

The previous prime is 129671. The next prime is 129707. The reversal of 129692 is 296921.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

129692 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 16208 + ... + 16215.

It is an arithmetic number, because the mean of its divisors is an integer number (37828).

2¹²⁹⁶⁹² is an apocalyptic number.

It is an amenable number.

129692 is a deficient number, since it is larger than the sum of its proper divisors (97276).

129692 is a wasteful number, since it uses less digits than its factorization.

129692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32427 (or 32425 counting only the distinct ones).

The product of its digits is 1944, while the sum is 29.

The square root of 129692 is about 360.1277551092. The cubic root of 129692 is about 50.6179317470.

The spelling of 129692 in words is "one hundred twenty-nine thousand, six hundred ninety-two".