129914746 has 16 divisors (see below), whose sum is σ = 210060648. Its totient is φ = 59904000.

The previous prime is 129914717. The next prime is 129914747. The reversal of 129914746 is 647419921.

It can be written as a sum of positive squares in 4 ways, for example, as 88454025 + 41460721 = 9405^2 + 6439^2 .

It is not an unprimeable number, because it can be changed into a prime (129914747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40066 + ... + 43186.

Almost surely, 2^129914746 is an apocalyptic number.

129914746 is a deficient number, since it is larger than the sum of its proper divisors (80145902).

129914746 is a wasteful number, since it uses less digits than its factorization.

129914746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4737.

The product of its digits is 108864, while the sum is 43.

The square root of 129914746 is about 11398.0150026222. The cubic root of 129914746 is about 506.4689393710.

The spelling of 129914746 in words is "one hundred twenty-nine million, nine hundred fourteen thousand, seven hundred forty-six".