223356149 has 8 divisors (see below), whose sum is σ = 237480408. Its totient is φ = 209341440.

The previous prime is 223356143. The next prime is 223356163. The reversal of 223356149 is 941653322.

It can be written as a sum of positive squares in 4 ways, for example, as 141181924 + 82174225 = 11882^2 + 9065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223356149 is a prime.

It is a super-2 number, since 2×223356149² = 99775938592220402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223356143) 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 7 ways as a sum of consecutive naturals, for example, 23162 + ... + 31355.

It is an arithmetic number, because the mean of its divisors is an integer number (29685051).

Almost surely, 2^223356149 is an apocalyptic number.

It is an amenable number.

223356149 is a deficient number, since it is larger than the sum of its proper divisors (14124259).

223356149 is a wasteful number, since it uses less digits than its factorization.

223356149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54775.

The product of its digits is 38880, while the sum is 35.

The square root of 223356149 is about 14945.1045161953. The cubic root of 223356149 is about 606.7353577509.

The spelling of 223356149 in words is "two hundred twenty-three million, three hundred fifty-six thousand, one hundred forty-nine".