73144168 has 16 divisors (see below), whose sum is σ = 139193280. Its totient is φ = 36025968.

The previous prime is 73144157. The next prime is 73144171. The reversal of 73144168 is 86144137.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67696 + ... + 68767.

It is an arithmetic number, because the mean of its divisors is an integer number (8699580).

Almost surely, 2^73144168 is an apocalyptic number.

It is an amenable number.

73144168 is a deficient number, since it is larger than the sum of its proper divisors (66049112).

73144168 is a wasteful number, since it uses less digits than its factorization.

73144168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136536 (or 136532 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 73144168 is about 8552.4363780153. The cubic root of 73144168 is about 418.2088651923.

The spelling of 73144168 in words is "seventy-three million, one hundred forty-four thousand, one hundred sixty-eight".