129248296 has 16 divisors (see below), whose sum is σ = 244607040. Its totient is φ = 64019760.

The previous prime is 129248243. The next prime is 129248341. The reversal of 129248296 is 692842921.

It is a happy number.

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, 74640 + ... + 76351.

It is an arithmetic number, because the mean of its divisors is an integer number (15287940).

Almost surely, 2^129248296 is an apocalyptic number.

It is an amenable number.

129248296 is a deficient number, since it is larger than the sum of its proper divisors (115358744).

129248296 is a wasteful number, since it uses less digits than its factorization.

129248296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151104 (or 151100 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 129248296 is about 11368.7420588208. The cubic root of 129248296 is about 505.6014087747.

The spelling of 129248296 in words is "one hundred twenty-nine million, two hundred forty-eight thousand, two hundred ninety-six".