612618212 has 6 divisors (see below), whose sum is σ = 1072081878. Its totient is φ = 306309104.

The previous prime is 612618199. The next prime is 612618221. The reversal of 612618212 is 212816216.

612618212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 512297956 + 100320256 = 22634^2 + 10016^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76577273 + ... + 76577280.

It is an arithmetic number, because the mean of its divisors is an integer number (178680313).

Almost surely, 2^612618212 is an apocalyptic number.

It is an amenable number.

612618212 is a deficient number, since it is larger than the sum of its proper divisors (459463666).

612618212 is a wasteful number, since it uses less digits than its factorization.

612618212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153154557 (or 153154555 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 612618212 is about 24751.1254693600. The cubic root of 612618212 is about 849.3042574346.

The spelling of 612618212 in words is "six hundred twelve million, six hundred eighteen thousand, two hundred twelve".