129248914 has 8 divisors (see below), whose sum is σ = 202302720. Its totient is φ = 61814676.

The previous prime is 129248879. The next prime is 129248929. The reversal of 129248914 is 419842921.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404834 + ... + 1404925.

It is an arithmetic number, because the mean of its divisors is an integer number (25287840).

Almost surely, 2^129248914 is an apocalyptic number.

129248914 is a deficient number, since it is larger than the sum of its proper divisors (73053806).

129248914 is a wasteful number, since it uses less digits than its factorization.

129248914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809784.

The product of its digits is 41472, while the sum is 40.

The square root of 129248914 is about 11368.7692385764. The cubic root of 129248914 is about 505.6022146169.

The spelling of 129248914 in words is "one hundred twenty-nine million, two hundred forty-eight thousand, nine hundred fourteen".