545437217 has 8 divisors (see below), whose sum is σ = 591286080. Its totient is φ = 500144400.

The previous prime is 545437213. The next prime is 545437247. The reversal of 545437217 is 712734545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545437217 - 2² = 545437213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545437213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136967 + ... + 140892.

It is an arithmetic number, because the mean of its divisors is an integer number (73910760).

Almost surely, 2^545437217 is an apocalyptic number.

It is an amenable number.

545437217 is a deficient number, since it is larger than the sum of its proper divisors (45848863).

545437217 is a wasteful number, since it uses less digits than its factorization.

545437217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278023.

The product of its digits is 117600, while the sum is 38.

The square root of 545437217 is about 23354.5973418511. The cubic root of 545437217 is about 817.0492882258.

The spelling of 545437217 in words is "five hundred forty-five million, four hundred thirty-seven thousand, two hundred seventeen".