223808131 has 2 divisors, whose sum is σ = 223808132. Its totient is φ = 223808130.

The previous prime is 223808119. The next prime is 223808141. The reversal of 223808131 is 131808322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223808131 is a prime.

It is a super-2 number, since 2×223808131² = 100180159003426322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223808131.

It is not a weakly prime, because it can be changed into another prime (223808141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111904065 + 111904066.

It is an arithmetic number, because the mean of its divisors is an integer number (111904066).

Almost surely, 2^223808131 is an apocalyptic number.

223808131 is a deficient number, since it is larger than the sum of its proper divisors (1).

223808131 is an equidigital number, since it uses as much as digits as its factorization.

223808131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 223808131 is about 14960.2182804931. The cubic root of 223808131 is about 607.1443438632.

The spelling of 223808131 in words is "two hundred twenty-three million, eight hundred eight thousand, one hundred thirty-one".