129097000 has 32 divisors (see below), whose sum is σ = 302089320. Its totient is φ = 51638400.

The previous prime is 129096967. The next prime is 129097019. The reversal of 129097000 is 790921.

It can be written as a sum of positive squares in 4 ways, for example, as 26399044 + 102697956 = 5138^2 + 10134^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 129097000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63549 + ... + 65548.

Almost surely, 2^129097000 is an apocalyptic number.

129097000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129097000 is an abundant number, since it is smaller than the sum of its proper divisors (172992320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129097000 is a wasteful number, since it uses less digits than its factorization.

129097000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129118 (or 129104 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 129097000 is about 11362.0860760690. The cubic root of 129097000 is about 505.4040487561.

The spelling of 129097000 in words is "one hundred twenty-nine million, ninety-seven thousand".