129795645 has 32 divisors (see below), whose sum is σ = 237938688. Its totient is φ = 59185728.

The previous prime is 129795637. The next prime is 129795661. The reversal of 129795645 is 546597921.

It is not a de Polignac number, because 129795645 - 2³ = 129795637 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 129795594 and 129795603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47712 + ... + 50358.

It is an arithmetic number, because the mean of its divisors is an integer number (7435584).

Almost surely, 2^129795645 is an apocalyptic number.

129795645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129795645 is a deficient number, since it is larger than the sum of its proper divisors (108143043).

129795645 is a wasteful number, since it uses less digits than its factorization.

129795645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129.

The product of its digits is 680400, while the sum is 48.

The square root of 129795645 is about 11392.7891668371. The cubic root of 129795645 is about 506.3141214315.

The spelling of 129795645 in words is "one hundred twenty-nine million, seven hundred ninety-five thousand, six hundred forty-five".