545331073 has 4 divisors (see below), whose sum is σ = 623235520. Its totient is φ = 467426628.

The previous prime is 545331053. The next prime is 545331077. The reversal of 545331073 is 370133545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545331073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545331077) 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, 38952213 + ... + 38952226.

It is an arithmetic number, because the mean of its divisors is an integer number (155808880).

Almost surely, 2^545331073 is an apocalyptic number.

It is an amenable number.

545331073 is a deficient number, since it is larger than the sum of its proper divisors (77904447).

545331073 is an equidigital number, since it uses as much as digits as its factorization.

545331073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77904446.

The product of its (nonzero) digits is 18900, while the sum is 31.

The square root of 545331073 is about 23352.3247879092. The cubic root of 545331073 is about 816.9962845661.

The spelling of 545331073 in words is "five hundred forty-five million, three hundred thirty-one thousand, seventy-three".