129354460 has 12 divisors (see below), whose sum is σ = 271644408. Its totient is φ = 51741776.

The previous prime is 129354457. The next prime is 129354487. The reversal of 129354460 is 64453921.

It is a happy number.

129354460 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3233842 + ... + 3233881.

It is an arithmetic number, because the mean of its divisors is an integer number (22637034).

Almost surely, 2^129354460 is an apocalyptic number.

129354460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129354460 is an abundant number, since it is smaller than the sum of its proper divisors (142289948).

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

129354460 is a wasteful number, since it uses less digits than its factorization.

129354460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6467732 (or 6467730 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 129354460 is about 11373.4102185756. The cubic root of 129354460 is about 505.7398038374.

The spelling of 129354460 in words is "one hundred twenty-nine million, three hundred fifty-four thousand, four hundred sixty".