73045453 has 4 divisors (see below), whose sum is σ = 78664348. Its totient is φ = 67426560.

The previous prime is 73045451. The next prime is 73045463. The reversal of 73045453 is 35454037.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35259844 + 37785609 = 5938^2 + 6147^2 .

It is a cyclic number.

It is not a de Polignac number, because 73045453 - 2¹ = 73045451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73045451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2809428 + ... + 2809453.

It is an arithmetic number, because the mean of its divisors is an integer number (19666087).

Almost surely, 2^73045453 is an apocalyptic number.

It is an amenable number.

73045453 is a deficient number, since it is larger than the sum of its proper divisors (5618895).

73045453 is a wasteful number, since it uses less digits than its factorization.

73045453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5618894.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 73045453 is about 8546.6632670300. The cubic root of 73045453 is about 418.0206429676.

The spelling of 73045453 in words is "seventy-three million, forty-five thousand, four hundred fifty-three".