223197249 has 16 divisors (see below), whose sum is σ = 327026880. Its totient is φ = 134280960.

The previous prime is 223197239. The next prime is 223197251. The reversal of 223197249 is 942791322.

It is not a de Polignac number, because 223197249 - 2⁵ = 223197217 is a prime.

It is a super-3 number, since 3×223197249³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (223197239) 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 15 ways as a sum of consecutive naturals, for example, 20164 + ... + 29205.

It is an arithmetic number, because the mean of its divisors is an integer number (20439180).

Almost surely, 2^223197249 is an apocalyptic number.

It is an amenable number.

223197249 is a deficient number, since it is larger than the sum of its proper divisors (103829631).

223197249 is a wasteful number, since it uses less digits than its factorization.

223197249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49520.

The product of its digits is 54432, while the sum is 39.

The square root of 223197249 is about 14939.7874482872. The cubic root of 223197249 is about 606.5914424232.

It can be divided in two parts, 223197 and 249, that added together give a triangular number (223446 = T₆₆₈).

The spelling of 223197249 in words is "two hundred twenty-three million, one hundred ninety-seven thousand, two hundred forty-nine".