73123212 has 12 divisors (see below), whose sum is σ = 170620856. Its totient is φ = 24374400.

The previous prime is 73123207. The next prime is 73123217. The reversal of 73123212 is 21232137.

It is an interprime number because it is at equal distance from previous prime (73123207) and next prime (73123217).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (73123217) 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, 3046789 + ... + 3046812.

Almost surely, 2^73123212 is an apocalyptic number.

It is an amenable number.

73123212 is an abundant number, since it is smaller than the sum of its proper divisors (97497644).

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

73123212 is a wasteful number, since it uses less digits than its factorization.

73123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6093608 (or 6093606 counting only the distinct ones).

The product of its digits is 504, while the sum is 21.

The square root of 73123212 is about 8551.2111422886. The cubic root of 73123212 is about 418.1689220575.

Adding to 73123212 its reverse (21232137), we get a palindrome (94355349).

The spelling of 73123212 in words is "seventy-three million, one hundred twenty-three thousand, two hundred twelve".