223309953 has 12 divisors (see below), whose sum is σ = 334505808. Its totient is φ = 148873140.

The previous prime is 223309949. The next prime is 223309969. The reversal of 223309953 is 359903322.

It is not a de Polignac number, because 223309953 - 2² = 223309949 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223309913) 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 11 ways as a sum of consecutive naturals, for example, 459243 + ... + 459728.

It is an arithmetic number, because the mean of its divisors is an integer number (27875484).

Almost surely, 2^223309953 is an apocalyptic number.

It is an amenable number.

223309953 is a deficient number, since it is larger than the sum of its proper divisors (111195855).

223309953 is an frugal number, since it uses more digits than its factorization.

223309953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918986 (or 918974 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The square root of 223309953 is about 14943.5589134583. The cubic root of 223309953 is about 606.6935251899.

The spelling of 223309953 in words is "two hundred twenty-three million, three hundred nine thousand, nine hundred fifty-three".