129424706 has 8 divisors (see below), whose sum is σ = 205556940. Its totient is φ = 60905728.

The previous prime is 129424681. The next prime is 129424717. The reversal of 129424706 is 607424921.

It can be written as a sum of positive squares in 2 ways, for example, as 125641681 + 3783025 = 11209^2 + 1945^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1903271 + ... + 1903338.

Almost surely, 2^129424706 is an apocalyptic number.

129424706 is a deficient number, since it is larger than the sum of its proper divisors (76132234).

129424706 is a wasteful number, since it uses less digits than its factorization.

129424706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806628.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 129424706 is about 11376.4979673008. The cubic root of 129424706 is about 505.8313346831.

The spelling of 129424706 in words is "one hundred twenty-nine million, four hundred twenty-four thousand, seven hundred six".