223443134 has 4 divisors (see below), whose sum is σ = 335164704. Its totient is φ = 111721566.

The previous prime is 223443131. The next prime is 223443139. The reversal of 223443134 is 431344322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431344322 = 2 ⋅215672161.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223443131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55860782 + ... + 55860785.

It is an arithmetic number, because the mean of its divisors is an integer number (83791176).

Almost surely, 2^223443134 is an apocalyptic number.

223443134 is a deficient number, since it is larger than the sum of its proper divisors (111721570).

223443134 is a wasteful number, since it uses less digits than its factorization.

223443134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111721569.

The product of its digits is 6912, while the sum is 26.

The square root of 223443134 is about 14948.0143831882. The cubic root of 223443134 is about 606.8141109373.

Adding to 223443134 its reverse (431344322), we get a palindrome (654787456).

The spelling of 223443134 in words is "two hundred twenty-three million, four hundred forty-three thousand, one hundred thirty-four".