129903374 has 8 divisors (see below), whose sum is σ = 200121528. Its totient is φ = 63196200.

The previous prime is 129903373. The next prime is 129903377. The reversal of 129903374 is 473309921.

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 not an unprimeable number, because it can be changed into a prime (129903373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877652 + ... + 877799.

It is an arithmetic number, because the mean of its divisors is an integer number (25015191).

Almost surely, 2^129903374 is an apocalyptic number.

129903374 is a deficient number, since it is larger than the sum of its proper divisors (70218154).

129903374 is a wasteful number, since it uses less digits than its factorization.

129903374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755490.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 129903374 is about 11397.5161329125. The cubic root of 129903374 is about 506.4541611337.

The spelling of 129903374 in words is "one hundred twenty-nine million, nine hundred three thousand, three hundred seventy-four".