129607423 has 8 divisors (see below), whose sum is σ = 142848720. Its totient is φ = 116609280.

The previous prime is 129607421. The next prime is 129607441. The reversal of 129607423 is 324706921.

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 129607423 - 2¹ = 129607421 is a prime.

It is a super-3 number, since 3×129607423³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129607421) 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, 59668 + ... + 61801.

It is an arithmetic number, because the mean of its divisors is an integer number (17856090).

Almost surely, 2^129607423 is an apocalyptic number.

129607423 is a deficient number, since it is larger than the sum of its proper divisors (13241297).

129607423 is a wasteful number, since it uses less digits than its factorization.

129607423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121577.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 129607423 is about 11384.5255939806. The cubic root of 129607423 is about 506.0692607260.

The spelling of 129607423 in words is "one hundred twenty-nine million, six hundred seven thousand, four hundred twenty-three".