105613613 has 4 divisors (see below), whose sum is σ = 120701280. Its totient is φ = 90525948.

The previous prime is 105613603. The next prime is 105613657. The reversal of 105613613 is 316316501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105613613 - 2⁴ = 105613597 is a prime.

It is a super-2 number, since 2×105613613² = 22308470501827538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105613603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7543823 + ... + 7543836.

It is an arithmetic number, because the mean of its divisors is an integer number (30175320).

Almost surely, 2^105613613 is an apocalyptic number.

It is an amenable number.

105613613 is a deficient number, since it is larger than the sum of its proper divisors (15087667).

105613613 is an equidigital number, since it uses as much as digits as its factorization.

105613613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15087666.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 105613613 is about 10276.8483982201. The cubic root of 105613613 is about 472.6866099404.

The spelling of 105613613 in words is "one hundred five million, six hundred thirteen thousand, six hundred thirteen".