129253416 has 32 divisors (see below), whose sum is σ = 323416800. Its totient is φ = 43046720.

The previous prime is 129253381. The next prime is 129253417. The reversal of 129253416 is 614352921.

It is not an unprimeable number, because it can be changed into a prime (129253417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44950 + ... + 47738.

It is an arithmetic number, because the mean of its divisors is an integer number (10106775).

Almost surely, 2^129253416 is an apocalyptic number.

It is an amenable number.

129253416 is an abundant number, since it is smaller than the sum of its proper divisors (194163384).

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

129253416 is a wasteful number, since it uses less digits than its factorization.

129253416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729 (or 4725 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 129253416 is about 11368.9672354176. The cubic root of 129253416 is about 505.6080849299.

The spelling of 129253416 in words is "one hundred twenty-nine million, two hundred fifty-three thousand, four hundred sixteen".