129714826 has 8 divisors (see below), whose sum is σ = 194707044. Its totient is φ = 64812480.

The previous prime is 129714821. The next prime is 129714829. The reversal of 129714826 is 628417921.

It can be written as a sum of positive squares in 2 ways, for example, as 127712601 + 2002225 = 11301^2 + 1415^2 .

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 (129714821) 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, 18735 + ... + 24706.

Almost surely, 2^129714826 is an apocalyptic number.

129714826 is a deficient number, since it is larger than the sum of its proper divisors (64992218).

129714826 is a wasteful number, since it uses less digits than its factorization.

129714826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44936.

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

The square root of 129714826 is about 11389.2416780047. The cubic root of 129714826 is about 506.2090118520.

The spelling of 129714826 in words is "one hundred twenty-nine million, seven hundred fourteen thousand, eight hundred twenty-six".