129704465 has 32 divisors (see below), whose sum is σ = 176947200. Its totient is φ = 90417600.

The previous prime is 129704461. The next prime is 129704473. The reversal of 129704465 is 564407921.

It is not a de Polignac number, because 129704465 - 2² = 129704461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129704461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216236 + ... + 216834.

It is an arithmetic number, because the mean of its divisors is an integer number (5529600).

Almost surely, 2^129704465 is an apocalyptic number.

It is an amenable number.

129704465 is a deficient number, since it is larger than the sum of its proper divisors (47242735).

129704465 is a wasteful number, since it uses less digits than its factorization.

129704465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 129704465 is about 11388.7868098406. The cubic root of 129704465 is about 506.1955336414.

The spelling of 129704465 in words is "one hundred twenty-nine million, seven hundred four thousand, four hundred sixty-five".