129071613 has 8 divisors (see below), whose sum is σ = 187740576. Its totient is φ = 78225200.

The previous prime is 129071603. The next prime is 129071623. The reversal of 129071613 is 316170921.

It is an interprime number because it is at equal distance from previous prime (129071603) and next prime (129071623).

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

It is a cyclic number.

It is not a de Polignac number, because 129071613 - 2⁴ = 129071597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129071603) 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, 1955598 + ... + 1955663.

It is an arithmetic number, because the mean of its divisors is an integer number (23467572).

Almost surely, 2^129071613 is an apocalyptic number.

It is an amenable number.

129071613 is a deficient number, since it is larger than the sum of its proper divisors (58668963).

129071613 is a wasteful number, since it uses less digits than its factorization.

129071613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911275.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 129071613 is about 11360.9688407283. The cubic root of 129071613 is about 505.3709172511.

The spelling of 129071613 in words is "one hundred twenty-nine million, seventy-one thousand, six hundred thirteen".