129340613 has 2 divisors, whose sum is σ = 129340614. Its totient is φ = 129340612.

The previous prime is 129340583. The next prime is 129340621. The reversal of 129340613 is 316043921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74684164 + 54656449 = 8642^2 + 7393^2 .

It is a cyclic number.

It is not a de Polignac number, because 129340613 - 2⁸ = 129340357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129310613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64670306 + 64670307.

It is an arithmetic number, because the mean of its divisors is an integer number (64670307).

Almost surely, 2^129340613 is an apocalyptic number.

It is an amenable number.

129340613 is a deficient number, since it is larger than the sum of its proper divisors (1).

129340613 is an equidigital number, since it uses as much as digits as its factorization.

129340613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 129340613 is about 11372.8014578643. The cubic root of 129340613 is about 505.7217572261.

The spelling of 129340613 in words is "one hundred twenty-nine million, three hundred forty thousand, six hundred thirteen".