129168245 has 16 divisors (see below), whose sum is σ = 159183360. Its totient is φ = 100560000.

The previous prime is 129168229. The next prime is 129168301. The reversal of 129168245 is 542861921.

It is not a de Polignac number, because 129168245 - 2⁴ = 129168229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129168199 and 129168208.

It is a congruent number.

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, 153536 + ... + 154374.

It is an arithmetic number, because the mean of its divisors is an integer number (9948960).

Almost surely, 2^129168245 is an apocalyptic number.

It is an amenable number.

129168245 is a deficient number, since it is larger than the sum of its proper divisors (30015115).

129168245 is an equidigital number, since it uses as much as digits as its factorization.

129168245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636.

The product of its digits is 34560, while the sum is 38.

The square root of 129168245 is about 11365.2208513517. The cubic root of 129168245 is about 505.4970044139.

The spelling of 129168245 in words is "one hundred twenty-nine million, one hundred sixty-eight thousand, two hundred forty-five".