545420212 has 12 divisors (see below), whose sum is σ = 977765796. Its totient is φ = 266058560.

The previous prime is 545420189. The next prime is 545420221. The reversal of 545420212 is 212024545.

It can be written as a sum of positive squares in 2 ways, for example, as 7365796 + 538054416 = 2714^2 + 23196^2 .

It is a congruent number.

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, 1662703 + ... + 1663030.

It is an arithmetic number, because the mean of its divisors is an integer number (81480483).

Almost surely, 2^545420212 is an apocalyptic number.

It is an amenable number.

545420212 is a deficient number, since it is larger than the sum of its proper divisors (432345584).

545420212 is a wasteful number, since it uses less digits than its factorization.

545420212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325778 (or 3325776 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 545420212 is about 23354.2332779306. The cubic root of 545420212 is about 817.0407971370.

Adding to 545420212 its reverse (212024545), we get a palindrome (757444757).

The spelling of 545420212 in words is "five hundred forty-five million, four hundred twenty thousand, two hundred twelve".