222949149 has 4 divisors (see below), whose sum is σ = 297265536. Its totient is φ = 148632764.

The previous prime is 222949127. The next prime is 222949151. The reversal of 222949149 is 941949222.

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.

It is a cyclic number.

It is not a de Polignac number, because 222949149 - 2⁸ = 222948893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222949149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222949549) by changing a digit.

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, 37158189 + ... + 37158194.

It is an arithmetic number, because the mean of its divisors is an integer number (74316384).

Almost surely, 2^222949149 is an apocalyptic number.

It is an amenable number.

222949149 is a deficient number, since it is larger than the sum of its proper divisors (74316387).

222949149 is an equidigital number, since it uses as much as digits as its factorization.

222949149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74316386.

The product of its digits is 93312, while the sum is 42.

The square root of 222949149 is about 14931.4818085815. The cubic root of 222949149 is about 606.3666022364.

The spelling of 222949149 in words is "two hundred twenty-two million, nine hundred forty-nine thousand, one hundred forty-nine".