129340974 has 32 divisors (see below), whose sum is σ = 303630336. Its totient is φ = 35955360.

The previous prime is 129340969. The next prime is 129340987. The reversal of 129340974 is 479043921.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40062 + ... + 43169.

It is an arithmetic number, because the mean of its divisors is an integer number (9488448).

Almost surely, 2^129340974 is an apocalyptic number.

129340974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

129340974 is an abundant number, since it is smaller than the sum of its proper divisors (174289362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129340974 is a wasteful number, since it uses less digits than its factorization.

129340974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83280.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 129340974 is about 11372.8173290526. The cubic root of 129340974 is about 505.7222277290.

The spelling of 129340974 in words is "one hundred twenty-nine million, three hundred forty thousand, nine hundred seventy-four".