545345215 has 16 divisors (see below), whose sum is σ = 660348000. Its totient is φ = 432335232.

The previous prime is 545345209. The next prime is 545345219. The reversal of 545345215 is 512543545.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545345215 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545345219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 617164 + ... + 618046.

It is an arithmetic number, because the mean of its divisors is an integer number (41271750).

Almost surely, 2^545345215 is an apocalyptic number.

545345215 is a deficient number, since it is larger than the sum of its proper divisors (115002785).

545345215 is a wasteful number, since it uses less digits than its factorization.

545345215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866.

The product of its digits is 60000, while the sum is 34.

The square root of 545345215 is about 23352.6275823514. The cubic root of 545345215 is about 817.0033468579.

The spelling of 545345215 in words is "five hundred forty-five million, three hundred forty-five thousand, two hundred fifteen".