129822974 has 16 divisors (see below), whose sum is σ = 200609136. Its totient is φ = 62971200.

The previous prime is 129822949. The next prime is 129822997. The reversal of 129822974 is 479228921.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10469 + ... + 19215.

It is an arithmetic number, because the mean of its divisors is an integer number (12538071).

Almost surely, 2^129822974 is an apocalyptic number.

129822974 is a deficient number, since it is larger than the sum of its proper divisors (70786162).

129822974 is a wasteful number, since it uses less digits than its factorization.

129822974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8971.

The product of its digits is 145152, while the sum is 44.

The square root of 129822974 is about 11393.9885027149. The cubic root of 129822974 is about 506.3496544357.

The spelling of 129822974 in words is "one hundred twenty-nine million, eight hundred twenty-two thousand, nine hundred seventy-four".