73105613 has 8 divisors (see below), whose sum is σ = 83792832. Its totient is φ = 62479296.

The previous prime is 73105609. The next prime is 73105621. The reversal of 73105613 is 31650137.

It is a happy number.

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 73105613 - 2² = 73105609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73105013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12620 + ... + 17477.

It is an arithmetic number, because the mean of its divisors is an integer number (10474104).

Almost surely, 2^73105613 is an apocalyptic number.

It is an amenable number.

73105613 is a deficient number, since it is larger than the sum of its proper divisors (10687219).

73105613 is a wasteful number, since it uses less digits than its factorization.

73105613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30451.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 73105613 is about 8550.1820448456. The cubic root of 73105613 is about 418.1353716287.

The spelling of 73105613 in words is "seventy-three million, one hundred five thousand, six hundred thirteen".