129388373 has 8 divisors (see below), whose sum is σ = 131193216. Its totient is φ = 127594000.

The previous prime is 129388367. The next prime is 129388379. The reversal of 129388373 is 373883921.

It is an interprime number because it is at equal distance from previous prime (129388367) and next prime (129388379).

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 129388373 - 2²⁰ = 128339797 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 (129388379) 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 7 ways as a sum of consecutive naturals, for example, 24128 + ... + 28998.

It is an arithmetic number, because the mean of its divisors is an integer number (16399152).

Almost surely, 2^129388373 is an apocalyptic number.

It is an amenable number.

129388373 is a deficient number, since it is larger than the sum of its proper divisors (1804843).

129388373 is a wasteful number, since it uses less digits than its factorization.

129388373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5235.

The product of its digits is 217728, while the sum is 44.

The square root of 129388373 is about 11374.9010105583. The cubic root of 129388373 is about 505.7839967611.

The spelling of 129388373 in words is "one hundred twenty-nine million, three hundred eighty-eight thousand, three hundred seventy-three".