129515064 has 64 divisors (see below), whose sum is σ = 379088640. Its totient is φ = 36099840.

The previous prime is 129515051. The next prime is 129515081. The reversal of 129515064 is 460515921.

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, 2514 + ... + 16289.

It is an arithmetic number, because the mean of its divisors is an integer number (5923260).

Almost surely, 2^129515064 is an apocalyptic number.

129515064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129515064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189544320).

129515064 is an abundant number, since it is smaller than the sum of its proper divisors (249573576).

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

129515064 is a wasteful number, since it uses less digits than its factorization.

129515064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18860 (or 18856 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 129515064 is about 11380.4685316555. The cubic root of 129515064 is about 505.9490228657.

The spelling of 129515064 in words is "one hundred twenty-nine million, five hundred fifteen thousand, sixty-four".