223332149 has 2 divisors, whose sum is σ = 223332150. Its totient is φ = 223332148.

The previous prime is 223332097. The next prime is 223332173. The reversal of 223332149 is 941233322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187416100 + 35916049 = 13690^2 + 5993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223332149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223332199) 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, 111666074 + 111666075.

It is an arithmetic number, because the mean of its divisors is an integer number (111666075).

Almost surely, 2^223332149 is an apocalyptic number.

It is an amenable number.

223332149 is a deficient number, since it is larger than the sum of its proper divisors (1).

223332149 is an equidigital number, since it uses as much as digits as its factorization.

223332149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 223332149 is about 14944.3015561116. The cubic root of 223332149 is about 606.7136253887.

It can be divided in two parts, 2233 and 32149, that multiplied together give a palindrome (71788717).

The spelling of 223332149 in words is "two hundred twenty-three million, three hundred thirty-two thousand, one hundred forty-nine".