612222845 has 32 divisors (see below), whose sum is σ = 835860480. Its totient is φ = 426746880.

The previous prime is 612222839. The next prime is 612222889. The reversal of 612222845 is 548222216.

It is not a de Polignac number, because 612222845 - 2¹⁴ = 612206461 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415460 + ... + 416930.

It is an arithmetic number, because the mean of its divisors is an integer number (26120640).

Almost surely, 2^612222845 is an apocalyptic number.

612222845 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

612222845 is a deficient number, since it is larger than the sum of its proper divisors (223637635).

612222845 is a wasteful number, since it uses less digits than its factorization.

612222845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845.

The product of its digits is 15360, while the sum is 32.

The square root of 612222845 is about 24743.1373313895. The cubic root of 612222845 is about 849.1215122210.

The spelling of 612222845 in words is "six hundred twelve million, two hundred twenty-two thousand, eight hundred forty-five".