129722764 has 6 divisors (see below), whose sum is σ = 227014844. Its totient is φ = 64861380.

The previous prime is 129722759. The next prime is 129722779. The reversal of 129722764 is 467227921.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16215342 + ... + 16215349.

Almost surely, 2^129722764 is an apocalyptic number.

It is an amenable number.

129722764 is a deficient number, since it is larger than the sum of its proper divisors (97292080).

129722764 is a wasteful number, since it uses less digits than its factorization.

129722764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32430695 (or 32430693 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 129722764 is about 11389.5901594395. The cubic root of 129722764 is about 506.2193375932.

The spelling of 129722764 in words is "one hundred twenty-nine million, seven hundred twenty-two thousand, seven hundred sixty-four".