73100212 has 24 divisors (see below), whose sum is σ = 131612040. Its totient is φ = 35504640.

The previous prime is 73100207. The next prime is 73100249. The reversal of 73100212 is 21200137.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4309776 + 68790436 = 2076^2 + 8294^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43288 + ... + 44944.

It is an arithmetic number, because the mean of its divisors is an integer number (5483835).

Almost surely, 2^73100212 is an apocalyptic number.

It is an amenable number.

73100212 is a deficient number, since it is larger than the sum of its proper divisors (58511828).

73100212 is a wasteful number, since it uses less digits than its factorization.

73100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 73100212 is about 8549.8661977834. The cubic root of 73100212 is about 418.1250741761.

Adding to 73100212 its reverse (21200137), we get a palindrome (94300349).

The spelling of 73100212 in words is "seventy-three million, one hundred thousand, two hundred twelve".