129148400 has 30 divisors (see below), whose sum is σ = 310279992. Its totient is φ = 51659200.

The previous prime is 129148399. The next prime is 129148403. The reversal of 129148400 is 4841921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129148403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 161036 + ... + 161835.

Almost surely, 2^129148400 is an apocalyptic number.

129148400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129148400 is an abundant number, since it is smaller than the sum of its proper divisors (181131592).

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

129148400 is a wasteful number, since it uses less digits than its factorization.

129148400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322889 (or 322878 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 129148400 is about 11364.3477595505. The cubic root of 129148400 is about 505.4711154352.

The spelling of 129148400 in words is "one hundred twenty-nine million, one hundred forty-eight thousand, four hundred".