545215612 has 24 divisors (see below), whose sum is σ = 966309120. Its totient is φ = 269149440.

The previous prime is 545215607. The next prime is 545215613. The reversal of 545215612 is 216512545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545215613) 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, 102064 + ... + 107272.

It is an arithmetic number, because the mean of its divisors is an integer number (40262880).

Almost surely, 2^545215612 is an apocalyptic number.

It is an amenable number.

545215612 is a deficient number, since it is larger than the sum of its proper divisors (421093508).

545215612 is a wasteful number, since it uses less digits than its factorization.

545215612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541 (or 5539 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The square root of 545215612 is about 23349.8525048875. The cubic root of 545215612 is about 816.9386205946.

The spelling of 545215612 in words is "five hundred forty-five million, two hundred fifteen thousand, six hundred twelve".