129241798 has 16 divisors (see below), whose sum is σ = 225190944. Its totient is φ = 54480960.

The previous prime is 129241787. The next prime is 129241813. The reversal of 129241798 is 897142921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74815 + ... + 76522.

It is an arithmetic number, because the mean of its divisors is an integer number (14074434).

Almost surely, 2^129241798 is an apocalyptic number.

129241798 is a deficient number, since it is larger than the sum of its proper divisors (95949146).

129241798 is a wasteful number, since it uses less digits than its factorization.

129241798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151407.

The product of its digits is 72576, while the sum is 43.

The square root of 129241798 is about 11368.4562716316. The cubic root of 129241798 is about 505.5929355411.

The spelling of 129241798 in words is "one hundred twenty-nine million, two hundred forty-one thousand, seven hundred ninety-eight".