222955949 has 4 divisors (see below), whose sum is σ = 222986400. Its totient is φ = 222925500.

The previous prime is 222955939. The next prime is 222955979. The reversal of 222955949 is 949559222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 949559222 = 2 ⋅474779611.

It is a cyclic number.

It is not a de Polignac number, because 222955949 - 2⁸ = 222955693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222955939) 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 3 ways as a sum of consecutive naturals, for example, 3152 + ... + 21350.

It is an arithmetic number, because the mean of its divisors is an integer number (55746600).

Almost surely, 2^222955949 is an apocalyptic number.

It is an amenable number.

222955949 is a deficient number, since it is larger than the sum of its proper divisors (30451).

222955949 is a wasteful number, since it uses less digits than its factorization.

222955949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30450.

The product of its digits is 583200, while the sum is 47.

The square root of 222955949 is about 14931.7095136491. The cubic root of 222955949 is about 606.3727669470.

The spelling of 222955949 in words is "two hundred twenty-two million, nine hundred fifty-five thousand, nine hundred forty-nine".