545420210 has 8 divisors (see below), whose sum is σ = 981756396. Its totient is φ = 218168080.

The previous prime is 545420189. The next prime is 545420221. The reversal of 545420210 is 12024545.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 502163281 + 43256929 = 22409^2 + 6577^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27271001 + ... + 27271020.

Almost surely, 2^545420210 is an apocalyptic number.

545420210 is a deficient number, since it is larger than the sum of its proper divisors (436336186).

545420210 is a wasteful number, since it uses less digits than its factorization.

545420210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54542028.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 545420210 is about 23354.2332351118. The cubic root of 545420210 is about 817.0407961383.

Adding to 545420210 its reverse (12024545), we get a palindrome (557444755).

The spelling of 545420210 in words is "five hundred forty-five million, four hundred twenty thousand, two hundred ten".