129053894 has 8 divisors (see below), whose sum is σ = 193630008. Its totient is φ = 64510560.

The previous prime is 129053867. The next prime is 129053917. The reversal of 129053894 is 498350921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8249 + ... + 18059.

It is an arithmetic number, because the mean of its divisors is an integer number (24203751).

Almost surely, 2^129053894 is an apocalyptic number.

129053894 is a deficient number, since it is larger than the sum of its proper divisors (64576114).

129053894 is an equidigital number, since it uses as much as digits as its factorization.

129053894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16390.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 129053894 is about 11360.1889949067. The cubic root of 129053894 is about 505.3477903557.

The spelling of 129053894 in words is "one hundred twenty-nine million, fifty-three thousand, eight hundred ninety-four".