73213245 has 48 divisors (see below), whose sum is σ = 147239040. Its totient is φ = 32959872.

The previous prime is 73213241. The next prime is 73213247. The reversal of 73213245 is 54231237.

It is not a de Polignac number, because 73213245 - 2² = 73213241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73213241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19371 + ... + 22839.

It is an arithmetic number, because the mean of its divisors is an integer number (3067480).

Almost surely, 2^73213245 is an apocalyptic number.

It is an amenable number.

73213245 is an abundant number, since it is smaller than the sum of its proper divisors (74025795).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73213245 is a wasteful number, since it uses less digits than its factorization.

73213245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554 (or 3551 counting only the distinct ones).

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

The square root of 73213245 is about 8556.4738648581. The cubic root of 73213245 is about 418.3404752497.

The spelling of 73213245 in words is "seventy-three million, two hundred thirteen thousand, two hundred forty-five".