223868539 has 2 divisors, whose sum is σ = 223868540. Its totient is φ = 223868538.

The previous prime is 223868521. The next prime is 223868573. The reversal of 223868539 is 935868322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223868539 - 2¹¹ = 223866491 is a prime.

It is not a weakly prime, because it can be changed into another prime (223868509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111934269 + 111934270.

It is an arithmetic number, because the mean of its divisors is an integer number (111934270).

Almost surely, 2^223868539 is an apocalyptic number.

223868539 is a deficient number, since it is larger than the sum of its proper divisors (1).

223868539 is an equidigital number, since it uses as much as digits as its factorization.

223868539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 46.

The square root of 223868539 is about 14962.2370987764. The cubic root of 223868539 is about 607.1989636784.

The spelling of 223868539 in words is "two hundred twenty-three million, eight hundred sixty-eight thousand, five hundred thirty-nine".