129764748 has 12 divisors (see below), whose sum is σ = 302784440. Its totient is φ = 43254912.

The previous prime is 129764743. The next prime is 129764749. The reversal of 129764748 is 847467921.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 129764697 and 129764706.

It is not an unprimeable number, because it can be changed into a prime (129764743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5406853 + ... + 5406876.

Almost surely, 2^129764748 is an apocalyptic number.

It is an amenable number.

129764748 is an abundant number, since it is smaller than the sum of its proper divisors (173019692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129764748 is a wasteful number, since it uses less digits than its factorization.

129764748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10813736 (or 10813734 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 129764748 is about 11391.4330968496. The cubic root of 129764748 is about 506.2739433273.

The spelling of 129764748 in words is "one hundred twenty-nine million, seven hundred sixty-four thousand, seven hundred forty-eight".