129193000 has 32 divisors (see below), whose sum is σ = 302313960. Its totient is φ = 51676800.

The previous prime is 129192997. The next prime is 129193007. The reversal of 129193000 is 391921.

It can be written as a sum of positive squares in 4 ways, for example, as 34597924 + 94595076 = 5882^2 + 9726^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (129193007) by changing a digit.

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, 63597 + ... + 65596.

Almost surely, 2^129193000 is an apocalyptic number.

129193000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129193000 is an abundant number, since it is smaller than the sum of its proper divisors (173120960).

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

129193000 is a wasteful number, since it uses less digits than its factorization.

129193000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129214 (or 129200 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 129193000 is about 11366.3098673228. The cubic root of 129193000 is about 505.5292950620.

The spelling of 129193000 in words is "one hundred twenty-nine million, one hundred ninety-three thousand".