223215433453 has 2 divisors, whose sum is σ = 223215433454. Its totient is φ = 223215433452.

The previous prime is 223215433423. The next prime is 223215433487. The reversal of 223215433453 is 354334512322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137613547369 + 85601886084 = 370963^2 + 292578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223215433453 is a prime.

It is a super-3 number, since 3×223215433453³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223215433423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111607716726 + 111607716727.

It is an arithmetic number, because the mean of its divisors is an integer number (111607716727).

Almost surely, 2^223215433453 is an apocalyptic number.

It is an amenable number.

223215433453 is a deficient number, since it is larger than the sum of its proper divisors (1).

223215433453 is an equidigital number, since it uses as much as digits as its factorization.

223215433453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 37.

Adding to 223215433453 its reverse (354334512322), we get a palindrome (577549945775).

The spelling of 223215433453 in words is "two hundred twenty-three billion, two hundred fifteen million, four hundred thirty-three thousand, four hundred fifty-three".