222944531 has 2 divisors, whose sum is σ = 222944532. Its totient is φ = 222944530.

The previous prime is 222944503. The next prime is 222944549. The reversal of 222944531 is 135449222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222944531 - 2¹⁰ = 222943507 is a prime.

It is a super-2 number, since 2×222944531² = 99408527805619922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222944231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111472265 + 111472266.

It is an arithmetic number, because the mean of its divisors is an integer number (111472266).

Almost surely, 2^222944531 is an apocalyptic number.

222944531 is a deficient number, since it is larger than the sum of its proper divisors (1).

222944531 is an equidigital number, since it uses as much as digits as its factorization.

222944531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 222944531 is about 14931.3271680718. The cubic root of 222944531 is about 606.3624156011.

The spelling of 222944531 in words is "two hundred twenty-two million, nine hundred forty-four thousand, five hundred thirty-one".