73612165 has 24 divisors (see below), whose sum is σ = 97665624. Its totient is φ = 53222400.

The previous prime is 73612151. The next prime is 73612171. The reversal of 73612165 is 56121637.

It can be written as a sum of positive squares in 4 ways, for example, as 2614689 + 70997476 = 1617^2 + 8426^2 .

It is not a de Polignac number, because 73612165 - 2¹⁵ = 73579397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 169789 + ... + 170221.

It is an arithmetic number, because the mean of its divisors is an integer number (4069401).

Almost surely, 2^73612165 is an apocalyptic number.

It is an amenable number.

73612165 is a deficient number, since it is larger than the sum of its proper divisors (24053459).

73612165 is a wasteful number, since it uses less digits than its factorization.

73612165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 730 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 73612165 is about 8579.7532015787. The cubic root of 73612165 is about 419.0989090246.

The spelling of 73612165 in words is "seventy-three million, six hundred twelve thousand, one hundred sixty-five".