129612874 has 8 divisors (see below), whose sum is σ = 194546880. Its totient is φ = 64763916.

The previous prime is 129612859. The next prime is 129612877. The reversal of 129612874 is 478216921.

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

It is not an unprimeable number, because it can be changed into a prime (129612877) 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, 17304 + ... + 23635.

It is an arithmetic number, because the mean of its divisors is an integer number (24318360).

Almost surely, 2^129612874 is an apocalyptic number.

129612874 is a deficient number, since it is larger than the sum of its proper divisors (64934006).

129612874 is a wasteful number, since it uses less digits than its factorization.

129612874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42524.

The product of its digits is 48384, while the sum is 40.

The square root of 129612874 is about 11384.7649953787. The cubic root of 129612874 is about 506.0763553425.

The spelling of 129612874 in words is "one hundred twenty-nine million, six hundred twelve thousand, eight hundred seventy-four".