129769764 has 24 divisors (see below), whose sum is σ = 306946080. Its totient is φ = 42663744.

The previous prime is 129769727. The next prime is 129769777. The reversal of 129769764 is 467967921.

129769764 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73194 + ... + 74945.

It is an arithmetic number, because the mean of its divisors is an integer number (12789420).

Almost surely, 2^129769764 is an apocalyptic number.

It is an amenable number.

129769764 is an abundant number, since it is smaller than the sum of its proper divisors (177176316).

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

129769764 is a wasteful number, since it uses less digits than its factorization.

129769764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148219 (or 148217 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The square root of 129769764 is about 11391.6532601726. The cubic root of 129769764 is about 506.2804665097.

The spelling of 129769764 in words is "one hundred twenty-nine million, seven hundred sixty-nine thousand, seven hundred sixty-four".