129617374 has 8 divisors (see below), whose sum is σ = 202879440. Its totient is φ = 61990896.

The previous prime is 129617357. The next prime is 129617377. The reversal of 129617374 is 473716921.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129617377) 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, 1408839 + ... + 1408930.

It is an arithmetic number, because the mean of its divisors is an integer number (25359930).

Almost surely, 2^129617374 is an apocalyptic number.

129617374 is a deficient number, since it is larger than the sum of its proper divisors (73262066).

129617374 is a wasteful number, since it uses less digits than its factorization.

129617374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817794.

The product of its digits is 63504, while the sum is 40.

The square root of 129617374 is about 11384.9626262013. The cubic root of 129617374 is about 506.0822120581.

The spelling of 129617374 in words is "one hundred twenty-nine million, six hundred seventeen thousand, three hundred seventy-four".