129760423 has 8 divisors (see below), whose sum is σ = 141512000. Its totient is φ = 118261728.

The previous prime is 129760417. The next prime is 129760447. The reversal of 129760423 is 324067921.

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

It is a de Polignac number, because none of the positive numbers 2^k-129760423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129760403) 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, 62148 + ... + 64201.

It is an arithmetic number, because the mean of its divisors is an integer number (17689000).

Almost surely, 2^129760423 is an apocalyptic number.

129760423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

129760423 is a deficient number, since it is larger than the sum of its proper divisors (11751577).

129760423 is a wasteful number, since it uses less digits than its factorization.

129760423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126441.

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

The square root of 129760423 is about 11391.2432596271. The cubic root of 129760423 is about 506.2683186381.

It can be divided in two parts, 1297604 and 23, that multiplied together give a palindrome (29844892).

The spelling of 129760423 in words is "one hundred twenty-nine million, seven hundred sixty thousand, four hundred twenty-three".