129624479 has 8 divisors (see below), whose sum is σ = 136554240. Its totient is φ = 122705496.

The previous prime is 129624433. The next prime is 129624569. The reversal of 129624479 is 974426921.

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

It is not a de Polignac number, because 129624479 - 2¹² = 129620383 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 (129624419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37544 + ... + 40850.

It is an arithmetic number, because the mean of its divisors is an integer number (17069280).

Almost surely, 2^129624479 is an apocalyptic number.

129624479 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

129624479 is a deficient number, since it is larger than the sum of its proper divisors (6929761).

129624479 is a wasteful number, since it uses less digits than its factorization.

129624479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5389.

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

The square root of 129624479 is about 11385.2746563269. The cubic root of 129624479 is about 506.0914588854.

The spelling of 129624479 in words is "one hundred twenty-nine million, six hundred twenty-four thousand, four hundred seventy-nine".