129192393 has 8 divisors (see below), whose sum is σ = 187916256. Its totient is φ = 78298400.

The previous prime is 129192391. The next prime is 129192409. The reversal of 129192393 is 393291921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129192393 - 2¹ = 129192391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129192391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1957428 + ... + 1957493.

It is an arithmetic number, because the mean of its divisors is an integer number (23489532).

Almost surely, 2^129192393 is an apocalyptic number.

It is an amenable number.

129192393 is a deficient number, since it is larger than the sum of its proper divisors (58723863).

129192393 is a wasteful number, since it uses less digits than its factorization.

129192393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914935.

The product of its digits is 26244, while the sum is 39.

The square root of 129192393 is about 11366.2831655735. The cubic root of 129192393 is about 505.5285033349.

The spelling of 129192393 in words is "one hundred twenty-nine million, one hundred ninety-two thousand, three hundred ninety-three".