129244245 has 32 divisors (see below), whose sum is σ = 232388352. Its totient is φ = 60859392.

The previous prime is 129244231. The next prime is 129244277. The reversal of 129244245 is 542442921.

It is a happy number.

It is not a de Polignac number, because 129244245 - 2⁷ = 129244117 is a prime.

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, 9924 + ... + 18893.

It is an arithmetic number, because the mean of its divisors is an integer number (7262136).

Almost surely, 2^129244245 is an apocalyptic number.

129244245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129244245 is a deficient number, since it is larger than the sum of its proper divisors (103144107).

129244245 is a wasteful number, since it uses less digits than its factorization.

129244245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28861.

The product of its digits is 23040, while the sum is 33.

The square root of 129244245 is about 11368.5638934740. The cubic root of 129244245 is about 505.5961264028.

The spelling of 129244245 in words is "one hundred twenty-nine million, two hundred forty-four thousand, two hundred forty-five".