222145846 has 8 divisors (see below), whose sum is σ = 358851024. Its totient is φ = 102528840.

The previous prime is 222145813. The next prime is 222145871. The reversal of 222145846 is 648541222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4272010 + ... + 4272061.

It is an arithmetic number, because the mean of its divisors is an integer number (44856378).

Almost surely, 2^222145846 is an apocalyptic number.

222145846 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

222145846 is a deficient number, since it is larger than the sum of its proper divisors (136705178).

222145846 is a wasteful number, since it uses less digits than its factorization.

222145846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8544086.

The product of its digits is 30720, while the sum is 34.

The square root of 222145846 is about 14904.5578934767. The cubic root of 222145846 is about 605.6374639229.

The spelling of 222145846 in words is "two hundred twenty-two million, one hundred forty-five thousand, eight hundred forty-six".