73143045 has 24 divisors (see below), whose sum is σ = 129482496. Its totient is φ = 38178528.

The previous prime is 73143023. The next prime is 73143053. The reversal of 73143045 is 54034137.

It is not a de Polignac number, because 73143045 - 2¹⁰ = 73142021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15177 + ... + 19406.

It is an arithmetic number, because the mean of its divisors is an integer number (5395104).

Almost surely, 2^73143045 is an apocalyptic number.

It is an amenable number.

73143045 is a deficient number, since it is larger than the sum of its proper divisors (56339451).

73143045 is a wasteful number, since it uses less digits than its factorization.

73143045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34641 (or 34638 counting only the distinct ones).

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

The square root of 73143045 is about 8552.3707239572. The cubic root of 73143045 is about 418.2067248942.

The spelling of 73143045 in words is "seventy-three million, one hundred forty-three thousand, forty-five".