73113565 has 16 divisors (see below), whose sum is σ = 100493568. Its totient is φ = 50023296.

The previous prime is 73113559. The next prime is 73113569. The reversal of 73113565 is 56531137.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73113565 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73113569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15529 + ... + 19681.

It is an arithmetic number, because the mean of its divisors is an integer number (6280848).

Almost surely, 2^73113565 is an apocalyptic number.

It is an amenable number.

73113565 is a deficient number, since it is larger than the sum of its proper divisors (27380003).

73113565 is a wasteful number, since it uses less digits than its factorization.

73113565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4668.

The product of its digits is 9450, while the sum is 31.

The square root of 73113565 is about 8550.6470515394. The cubic root of 73113565 is about 418.1505318505.

The spelling of 73113565 in words is "seventy-three million, one hundred thirteen thousand, five hundred sixty-five".