129006613 has 2 divisors, whose sum is σ = 129006614. Its totient is φ = 129006612.

The previous prime is 129006607. The next prime is 129006617. The reversal of 129006613 is 316600921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83942244 + 45064369 = 9162^2 + 6713^2 .

It is a cyclic number.

It is not a de Polignac number, because 129006613 - 2¹⁷ = 128875541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129006617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64503306 + 64503307.

It is an arithmetic number, because the mean of its divisors is an integer number (64503307).

Almost surely, 2^129006613 is an apocalyptic number.

It is an amenable number.

129006613 is a deficient number, since it is larger than the sum of its proper divisors (1).

129006613 is an equidigital number, since it uses as much as digits as its factorization.

129006613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 129006613 is about 11358.1078089618. The cubic root of 129006613 is about 505.2860686810.

The spelling of 129006613 in words is "one hundred twenty-nine million, six thousand, six hundred thirteen".