73312245 has 48 divisors (see below), whose sum is σ = 137479680. Its totient is φ = 35999232.

The previous prime is 73312243. The next prime is 73312259. The reversal of 73312245 is 54221337.

It is not a de Polignac number, because 73312245 - 2¹ = 73312243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73312243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34936 + ... + 36974.

It is an arithmetic number, because the mean of its divisors is an integer number (2864160).

Almost surely, 2^73312245 is an apocalyptic number.

It is an amenable number.

73312245 is a deficient number, since it is larger than the sum of its proper divisors (64167435).

73312245 is a wasteful number, since it uses less digits than its factorization.

73312245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114 (or 2111 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 73312245 is about 8562.2570038513. The cubic root of 73312245 is about 418.5289523184.

The spelling of 73312245 in words is "seventy-three million, three hundred twelve thousand, two hundred forty-five".