129468100 has 36 divisors (see below), whose sum is σ = 281659924. Its totient is φ = 51655680.

The previous prime is 129468091. The next prime is 129468113. The reversal of 129468100 is 1864921.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 9216 + 129458884 = 96^2 + 11378^2 .

It is a super-2 number, since 2×129468100² = 33523977835220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44284 + ... + 47116.

Almost surely, 2^129468100 is an apocalyptic number.

129468100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129468100 is an abundant number, since it is smaller than the sum of its proper divisors (152191824).

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

129468100 is a wasteful number, since it uses less digits than its factorization.

129468100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304 (or 3297 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 129468100 is about 11378.4049848825. The cubic root of 129468100 is about 505.8878607074.

The spelling of 129468100 in words is "one hundred twenty-nine million, four hundred sixty-eight thousand, one hundred".