545240213 has 8 divisors (see below), whose sum is σ = 623291328. Its totient is φ = 467229024.

The previous prime is 545240191. The next prime is 545240219. The reversal of 545240213 is 312042545.

It is a happy number.

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 545240213 - 2²⁴ = 528462997 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 (545240219) 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, 29945 + ... + 44577.

It is an arithmetic number, because the mean of its divisors is an integer number (77911416).

Almost surely, 2^545240213 is an apocalyptic number.

It is an amenable number.

545240213 is a deficient number, since it is larger than the sum of its proper divisors (78051115).

545240213 is a wasteful number, since it uses less digits than its factorization.

545240213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19963.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 545240213 is about 23350.3792902813. The cubic root of 545240213 is about 816.9509076020.

Adding to 545240213 its reverse (312042545), we get a palindrome (857282758).

The spelling of 545240213 in words is "five hundred forty-five million, two hundred forty thousand, two hundred thirteen".