129265080 has 64 divisors (see below), whose sum is σ = 443197440. Its totient is φ = 29546112.

The previous prime is 129265057. The next prime is 129265091. The reversal of 129265080 is 80562921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76104 + ... + 77783.

It is an arithmetic number, because the mean of its divisors is an integer number (6924960).

Almost surely, 2^129265080 is an apocalyptic number.

129265080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129265080 is an abundant number, since it is smaller than the sum of its proper divisors (313932360).

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

129265080 is a wasteful number, since it uses less digits than its factorization.

129265080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153908 (or 153904 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 129265080 is about 11369.4801992000. The cubic root of 129265080 is about 505.6232933875.

The spelling of 129265080 in words is "one hundred twenty-nine million, two hundred sixty-five thousand, eighty".