223861459 has 2 divisors, whose sum is σ = 223861460. Its totient is φ = 223861458.

The previous prime is 223861427. The next prime is 223861489. The reversal of 223861459 is 954168322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223861459 - 2⁵ = 223861427 is a prime.

It is a super-2 number, since 2×223861459² = 100227905651217362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (223861409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111930729 + 111930730.

It is an arithmetic number, because the mean of its divisors is an integer number (111930730).

Almost surely, 2^223861459 is an apocalyptic number.

223861459 is a deficient number, since it is larger than the sum of its proper divisors (1).

223861459 is an equidigital number, since it uses as much as digits as its factorization.

223861459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 223861459 is about 14962.0005012699. Note that the first 3 decimals coincide. The cubic root of 223861459 is about 607.1925625795.

The spelling of 223861459 in words is "two hundred twenty-three million, eight hundred sixty-one thousand, four hundred fifty-nine".