72041065 has 16 divisors (see below), whose sum is σ = 92548800. Its totient is φ = 53669952.

The previous prime is 72041063. The next prime is 72041089. The reversal of 72041065 is 56014027.

It is a cyclic number.

It is not a de Polignac number, because 72041065 - 2¹ = 72041063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72041063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822 + ... + 12031.

It is an arithmetic number, because the mean of its divisors is an integer number (5784300).

Almost surely, 2^72041065 is an apocalyptic number.

It is an amenable number.

72041065 is a deficient number, since it is larger than the sum of its proper divisors (20507735).

72041065 is a wasteful number, since it uses less digits than its factorization.

72041065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12936.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 72041065 is about 8487.7008076393. The cubic root of 72041065 is about 416.0958409140.

The spelling of 72041065 in words is "seventy-two million, forty-one thousand, sixty-five".