129146792 has 16 divisors (see below), whose sum is σ = 242271540. Its totient is φ = 64541056.

The previous prime is 129146783. The next prime is 129146803. The reversal of 129146792 is 297641921.

It can be written as a sum of positive squares in 2 ways, for example, as 119990116 + 9156676 = 10954^2 + 3026^2 .

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, 26498 + ... + 30990.

Almost surely, 2^129146792 is an apocalyptic number.

It is an amenable number.

129146792 is a deficient number, since it is larger than the sum of its proper divisors (113124748).

129146792 is a wasteful number, since it uses less digits than its factorization.

129146792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8092 (or 8088 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 129146792 is about 11364.2770117593. The cubic root of 129146792 is about 505.4690175877.

The spelling of 129146792 in words is "one hundred twenty-nine million, one hundred forty-six thousand, seven hundred ninety-two".