129089396 has 12 divisors (see below), whose sum is σ = 226306080. Its totient is φ = 64430520.

The previous prime is 129089377. The next prime is 129089407. The reversal of 129089396 is 693980921.

It is a self number, because there is not a number n which added to its sum of digits gives 129089396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25976 + ... + 30543.

It is an arithmetic number, because the mean of its divisors is an integer number (18858840).

Almost surely, 2^129089396 is an apocalyptic number.

It is an amenable number.

129089396 is a deficient number, since it is larger than the sum of its proper divisors (97216684).

129089396 is a wasteful number, since it uses less digits than its factorization.

129089396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57094 (or 57092 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 129089396 is about 11361.7514494905. The cubic root of 129089396 is about 505.3941255515.

The spelling of 129089396 in words is "one hundred twenty-nine million, eighty-nine thousand, three hundred ninety-six".