618453223 has 2 divisors, whose sum is σ = 618453224. Its totient is φ = 618453222.

The previous prime is 618453161. The next prime is 618453263. The reversal of 618453223 is 322354816.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 618453223 - 2⁹ = 618452711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (618453263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309226611 + 309226612.

It is an arithmetic number, because the mean of its divisors is an integer number (309226612).

Almost surely, 2^618453223 is an apocalyptic number.

618453223 is a deficient number, since it is larger than the sum of its proper divisors (1).

618453223 is an equidigital number, since it uses as much as digits as its factorization.

618453223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 618453223 is about 24868.7197700244. The cubic root of 618453223 is about 851.9922004583.

The spelling of 618453223 in words is "six hundred eighteen million, four hundred fifty-three thousand, two hundred twenty-three".