129846613 has 8 divisors (see below), whose sum is σ = 142128056. Its totient is φ = 117892800.

The previous prime is 129846583. The next prime is 129846667. The reversal of 129846613 is 316648921.

129846613 = 8057² + 8058².

It can be written as a sum of positive squares in 4 ways, for example, as 18818244 + 111028369 = 4338^2 + 10537^2 .

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 129846613 - 2⁵ = 129846581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129846413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81078 + ... + 82663.

It is an arithmetic number, because the mean of its divisors is an integer number (17766007).

Almost surely, 2^129846613 is an apocalyptic number.

129846613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

129846613 is the 8058-th centered square number.

It is an amenable number.

129846613 is a deficient number, since it is larger than the sum of its proper divisors (12281443).

129846613 is a wasteful number, since it uses less digits than its factorization.

129846613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163815.

The product of its digits is 62208, while the sum is 40.

The square root of 129846613 is about 11395.0258007606. The cubic root of 129846613 is about 506.3803857017.

The spelling of 129846613 in words is "one hundred twenty-nine million, eight hundred forty-six thousand, six hundred thirteen".