73115112 has 128 divisors (see below), whose sum is σ = 219340800. Its totient is φ = 19872000.

The previous prime is 73115089. The next prime is 73115209. The reversal of 73115112 is 21151137.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 525939 + ... + 526077.

It is an arithmetic number, because the mean of its divisors is an integer number (1713600).

Almost surely, 2^73115112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73115112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109670400).

73115112 is an abundant number, since it is smaller than the sum of its proper divisors (146225688).

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

73115112 is a wasteful number, since it uses less digits than its factorization.

73115112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 283 counting only the distinct ones).

The product of its digits is 210, while the sum is 21.

The square root of 73115112 is about 8550.7375120512. The cubic root of 73115112 is about 418.1534810265.

Adding to 73115112 its reverse (21151137), we get a palindrome (94266249).

The spelling of 73115112 in words is "seventy-three million, one hundred fifteen thousand, one hundred twelve".