1198843223 has 2 divisors, whose sum is σ = 1198843224. Its totient is φ = 1198843222.

The previous prime is 1198843211. The next prime is 1198843231. The reversal of 1198843223 is 3223488911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1198843223 - 2¹² = 1198839127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1198843823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599421611 + 599421612.

It is an arithmetic number, because the mean of its divisors is an integer number (599421612).

Almost surely, 2^1198843223 is an apocalyptic number.

1198843223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198843223 is an equidigital number, since it uses as much as digits as its factorization.

1198843223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 1198843223 is about 34624.3154878187. The cubic root of 1198843223 is about 1062.3169985722.

The spelling of 1198843223 in words is "one billion, one hundred ninety-eight million, eight hundred forty-three thousand, two hundred twenty-three".