222143009 has 8 divisors (see below), whose sum is σ = 247494528. Its totient is φ = 197650960.

The previous prime is 222142967. The next prime is 222143017. The reversal of 222143009 is 900341222.

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

It is a cyclic number.

It is not a de Polignac number, because 222143009 - 2¹² = 222138913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222143059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214322 + ... + 215355.

It is an arithmetic number, because the mean of its divisors is an integer number (30936816).

Almost surely, 2^222143009 is an apocalyptic number.

It is an amenable number.

222143009 is a deficient number, since it is larger than the sum of its proper divisors (25351519).

222143009 is a wasteful number, since it uses less digits than its factorization.

222143009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429735.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 222143009 is about 14904.4627209437. The cubic root of 222143009 is about 605.6348857356.

The spelling of 222143009 in words is "two hundred twenty-two million, one hundred forty-three thousand, nine".