222955947 has 12 divisors (see below), whose sum is σ = 325667160. Its totient is φ = 146966688.

The previous prime is 222955939. The next prime is 222955979. The reversal of 222955947 is 749559222.

It is not a de Polignac number, because 222955947 - 2³ = 222955939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222955147) 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 11 ways as a sum of consecutive naturals, for example, 138373 + ... + 139974.

It is an arithmetic number, because the mean of its divisors is an integer number (27138930).

Almost surely, 2^222955947 is an apocalyptic number.

222955947 is a deficient number, since it is larger than the sum of its proper divisors (102711213).

222955947 is a wasteful number, since it uses less digits than its factorization.

222955947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278442 (or 278439 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 222955947 is about 14931.7094466776. The cubic root of 222955947 is about 606.3727651339.

The spelling of 222955947 in words is "two hundred twenty-two million, nine hundred fifty-five thousand, nine hundred forty-seven".