129230465 has 16 divisors (see below), whose sum is σ = 190864128. Its totient is φ = 81798336.

The previous prime is 129230459. The next prime is 129230477. The reversal of 129230465 is 564032921.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 129230465 - 2⁴ = 129230449 is a prime.

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, 141557 + ... + 142466.

It is an arithmetic number, because the mean of its divisors is an integer number (11929008).

Almost surely, 2^129230465 is an apocalyptic number.

It is an amenable number.

129230465 is a deficient number, since it is larger than the sum of its proper divisors (61633663).

129230465 is a wasteful number, since it uses less digits than its factorization.

129230465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284048.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 129230465 is about 11367.9578201188. The cubic root of 129230465 is about 505.5781569057.

The spelling of 129230465 in words is "one hundred twenty-nine million, two hundred thirty thousand, four hundred sixty-five".