129692046 has 32 divisors (see below), whose sum is σ = 286156800. Its totient is φ = 38857280.

The previous prime is 129692041. The next prime is 129692047. The reversal of 129692046 is 640296921.

It is a super-2 number, since 2×129692046² = 33640053591332232, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 129691995 and 129692013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129692041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5166 + ... + 16913.

It is an arithmetic number, because the mean of its divisors is an integer number (8942400).

Almost surely, 2^129692046 is an apocalyptic number.

129692046 is an abundant number, since it is smaller than the sum of its proper divisors (156464754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129692046 is a wasteful number, since it uses less digits than its factorization.

129692046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22184.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 129692046 is about 11388.2415675116. The cubic root of 129692046 is about 506.1793773151.

The spelling of 129692046 in words is "one hundred twenty-nine million, six hundred ninety-two thousand, forty-six".