129775607 has 12 divisors (see below), whose sum is σ = 141936264. Its totient is φ = 118591200.

The previous prime is 129775589. The next prime is 129775627. The reversal of 129775607 is 706577921.

It is not a de Polignac number, because 129775607 - 2¹⁶ = 129710071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129775627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13268 + ... + 20870.

It is an arithmetic number, because the mean of its divisors is an integer number (11828022).

Almost surely, 2^129775607 is an apocalyptic number.

129775607 is a deficient number, since it is larger than the sum of its proper divisors (12160657).

129775607 is a wasteful number, since it uses less digits than its factorization.

129775607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7730 (or 7717 counting only the distinct ones).

The product of its (nonzero) digits is 185220, while the sum is 44.

The square root of 129775607 is about 11391.9097169878. The cubic root of 129775607 is about 506.2880649730.

The spelling of 129775607 in words is "one hundred twenty-nine million, seven hundred seventy-five thousand, six hundred seven".