129517465 has 32 divisors (see below), whose sum is σ = 194524416. Its totient is φ = 80424960.

The previous prime is 129517429. The next prime is 129517469. The reversal of 129517465 is 564715921.

It is not a de Polignac number, because 129517465 - 2¹¹ = 129515417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129517469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135429 + ... + 136381.

It is an arithmetic number, because the mean of its divisors is an integer number (6078888).

Almost surely, 2^129517465 is an apocalyptic number.

It is an amenable number.

129517465 is a deficient number, since it is larger than the sum of its proper divisors (65006951).

129517465 is a wasteful number, since it uses less digits than its factorization.

129517465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329.

The product of its digits is 75600, while the sum is 40.

The square root of 129517465 is about 11380.5740189149. The cubic root of 129517465 is about 505.9521493389.

The spelling of 129517465 in words is "one hundred twenty-nine million, five hundred seventeen thousand, four hundred sixty-five".