129854396 has 12 divisors (see below), whose sum is σ = 259708848. Its totient is φ = 55651872.

The previous prime is 129854393. The next prime is 129854401. The reversal of 129854396 is 693458921.

129854396 is an admirable number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 129854396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129854393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318801 + ... + 2318856.

It is an arithmetic number, because the mean of its divisors is an integer number (21642404).

Almost surely, 2^129854396 is an apocalyptic number.

It is an amenable number.

129854396 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

129854396 is a wasteful number, since it uses less digits than its factorization.

129854396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637668 (or 4637666 counting only the distinct ones).

The product of its digits is 466560, while the sum is 47.

The square root of 129854396 is about 11395.3673043040. The cubic root of 129854396 is about 506.3905029719.

The spelling of 129854396 in words is "one hundred twenty-nine million, eight hundred fifty-four thousand, three hundred ninety-six".