129438614 has 8 divisors (see below), whose sum is σ = 197821440. Its totient is φ = 63498136.

The previous prime is 129438613. The next prime is 129438619. The reversal of 129438614 is 416834921.

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 (129438613) 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, 610454 + ... + 610665.

It is an arithmetic number, because the mean of its divisors is an integer number (24727680).

Almost surely, 2^129438614 is an apocalyptic number.

129438614 is a deficient number, since it is larger than the sum of its proper divisors (68382826).

129438614 is a wasteful number, since it uses less digits than its factorization.

129438614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221174.

The product of its digits is 41472, while the sum is 38.

The square root of 129438614 is about 11377.1092110430. The cubic root of 129438614 is about 505.8494529400.

The spelling of 129438614 in words is "one hundred twenty-nine million, four hundred thirty-eight thousand, six hundred fourteen".