129866674 has 8 divisors (see below), whose sum is σ = 222628608. Its totient is φ = 55657140.

The previous prime is 129866663. The next prime is 129866677. The reversal of 129866674 is 476668921.

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 (129866677) 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, 4638082 + ... + 4638109.

It is an arithmetic number, because the mean of its divisors is an integer number (27828576).

Almost surely, 2^129866674 is an apocalyptic number.

129866674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

129866674 is a deficient number, since it is larger than the sum of its proper divisors (92761934).

129866674 is an equidigital number, since it uses as much as digits as its factorization.

129866674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9276200.

The product of its digits is 870912, while the sum is 49.

The square root of 129866674 is about 11395.9060192685. The cubic root of 129866674 is about 506.4064625565.

The spelling of 129866674 in words is "one hundred twenty-nine million, eight hundred sixty-six thousand, six hundred seventy-four".