129672113 has 2 divisors, whose sum is σ = 129672114. Its totient is φ = 129672112.

The previous prime is 129672083. The next prime is 129672121. The reversal of 129672113 is 311276921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107081104 + 22591009 = 10348^2 + 4753^2 .

It is a cyclic number.

It is not a de Polignac number, because 129672113 - 2¹⁰ = 129671089 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129672113.

It is not a weakly prime, because it can be changed into another prime (129672143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64836056 + 64836057.

It is an arithmetic number, because the mean of its divisors is an integer number (64836057).

Almost surely, 2^129672113 is an apocalyptic number.

It is an amenable number.

129672113 is a deficient number, since it is larger than the sum of its proper divisors (1).

129672113 is an equidigital number, since it uses as much as digits as its factorization.

129672113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 32.

The square root of 129672113 is about 11387.3663768230. The cubic root of 129672113 is about 506.1534435980.

The spelling of 129672113 in words is "one hundred twenty-nine million, six hundred seventy-two thousand, one hundred thirteen".