73216061 has 4 divisors (see below), whose sum is σ = 76399392. Its totient is φ = 70032732.

The previous prime is 73216051. The next prime is 73216111. The reversal of 73216061 is 16061237.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16061237 = 983 ⋅16339.

It is a cyclic number.

It is not a de Polignac number, because 73216061 - 2⁶ = 73215997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73216061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73216051) 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, 1591631 + ... + 1591676.

It is an arithmetic number, because the mean of its divisors is an integer number (19099848).

Almost surely, 2^73216061 is an apocalyptic number.

It is an amenable number.

73216061 is a deficient number, since it is larger than the sum of its proper divisors (3183331).

73216061 is a wasteful number, since it uses less digits than its factorization.

73216061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3183330.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 73216061 is about 8556.6384170421. The cubic root of 73216061 is about 418.3458387222.

Adding to 73216061 its reverse (16061237), we get a palindrome (89277298).

The spelling of 73216061 in words is "seventy-three million, two hundred sixteen thousand, sixty-one".