545281612 has 24 divisors (see below), whose sum is σ = 964325376. Its totient is φ = 269772048.

The previous prime is 545281559. The next prime is 545281643. The reversal of 545281612 is 216182545.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223833 + ... + 226255.

It is an arithmetic number, because the mean of its divisors is an integer number (40180224).

Almost surely, 2^545281612 is an apocalyptic number.

It is an amenable number.

545281612 is a deficient number, since it is larger than the sum of its proper divisors (419043764).

545281612 is a wasteful number, since it uses less digits than its factorization.

545281612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997 (or 2995 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 545281612 is about 23351.2657472780. The cubic root of 545281612 is about 816.9715835621.

The spelling of 545281612 in words is "five hundred forty-five million, two hundred eighty-one thousand, six hundred twelve".