223400133 has 16 divisors (see below), whose sum is σ = 361051200. Its totient is φ = 135393840.

The previous prime is 223400129. The next prime is 223400143. The reversal of 223400133 is 331004322.

It is not a de Polignac number, because 223400133 - 2² = 223400129 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223400113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375798 + ... + 376391.

It is an arithmetic number, because the mean of its divisors is an integer number (22565700).

Almost surely, 2^223400133 is an apocalyptic number.

It is an amenable number.

223400133 is a deficient number, since it is larger than the sum of its proper divisors (137651067).

223400133 is a wasteful number, since it uses less digits than its factorization.

223400133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752209 (or 752203 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 223400133 is about 14946.5759624069. The cubic root of 223400133 is about 606.7751818861.

Adding to 223400133 its reverse (331004322), we get a palindrome (554404455).

The spelling of 223400133 in words is "two hundred twenty-three million, four hundred thousand, one hundred thirty-three".