223242455 has 8 divisors (see below), whose sum is σ = 274121232. Its totient is φ = 174440448.

The previous prime is 223242451. The next prime is 223242473. The reversal of 223242455 is 554242322.

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

It is a cyclic number.

It is not a de Polignac number, because 223242455 - 2² = 223242451 is a prime.

It is a super-3 number, since 3×223242455³ (a number of 26 digits) contains 333 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 (223242451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518954 + ... + 519383.

It is an arithmetic number, because the mean of its divisors is an integer number (34265154).

Almost surely, 2^223242455 is an apocalyptic number.

223242455 is a deficient number, since it is larger than the sum of its proper divisors (50878777).

223242455 is a wasteful number, since it uses less digits than its factorization.

223242455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038385.

The product of its digits is 19200, while the sum is 29.

The square root of 223242455 is about 14941.3003115525. The cubic root of 223242455 is about 606.6323923330.

Adding to 223242455 its reverse (554242322), we get a palindrome (777484777).

The spelling of 223242455 in words is "two hundred twenty-three million, two hundred forty-two thousand, four hundred fifty-five".