223231849 has 2 divisors, whose sum is σ = 223231850. Its totient is φ = 223231848.

The previous prime is 223231843. The next prime is 223231861. The reversal of 223231849 is 948132322.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115175824 + 108056025 = 10732^2 + 10395^2 .

It is a cyclic number.

It is not a de Polignac number, because 223231849 - 2¹³ = 223223657 is a prime.

It is a super-3 number, since 3×223231849³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (223231843) 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 as a sum of consecutive naturals, namely, 111615924 + 111615925.

It is an arithmetic number, because the mean of its divisors is an integer number (111615925).

Almost surely, 2^223231849 is an apocalyptic number.

It is an amenable number.

223231849 is a deficient number, since it is larger than the sum of its proper divisors (1).

223231849 is an equidigital number, since it uses as much as digits as its factorization.

223231849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The square root of 223231849 is about 14940.9453850819. The cubic root of 223231849 is about 606.6227853715.

The spelling of 223231849 in words is "two hundred twenty-three million, two hundred thirty-one thousand, eight hundred forty-nine".