545345 has 8 divisors (see below), whose sum is σ = 677160. Its totient is φ = 421120.

The previous prime is 545329. The next prime is 545371. The reversal of 545345 is 543545.

It can be written as a sum of positive squares in 4 ways, for example, as 49729 + 495616 = 223^2 + 704^2 .

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

It is not a de Polignac number, because 545345 - 2⁴ = 545329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1736 + ... + 2025.

It is an arithmetic number, because the mean of its divisors is an integer number (84645).

2⁵⁴⁵³⁴⁵ is an apocalyptic number.

It is an amenable number.

545345 is a deficient number, since it is larger than the sum of its proper divisors (131815).

545345 is a wasteful number, since it uses less digits than its factorization.

545345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795.

The product of its digits is 6000, while the sum is 26.

The square root of 545345 is about 738.4747795287. The cubic root of 545345 is about 81.7003239491.

The spelling of 545345 in words is "five hundred forty-five thousand, three hundred forty-five".