129189010 has 8 divisors (see below), whose sum is σ = 232540236. Its totient is φ = 51675600.

The previous prime is 129189007. The next prime is 129189023. The reversal of 129189010 is 10981921.

It can be written as a sum of positive squares in 2 ways, for example, as 128391561 + 797449 = 11331^2 + 893^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 6459441 + ... + 6459460.

Almost surely, 2^129189010 is an apocalyptic number.

129189010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129189010 is a deficient number, since it is larger than the sum of its proper divisors (103351226).

129189010 is a wasteful number, since it uses less digits than its factorization.

129189010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12918908.

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 129189010 is about 11366.1343472616. The cubic root of 129189010 is about 505.5240907484.

The spelling of 129189010 in words is "one hundred twenty-nine million, one hundred eighty-nine thousand, ten".