2155234223 has 2 divisors, whose sum is σ = 2155234224. Its totient is φ = 2155234222.

The previous prime is 2155234199. The next prime is 2155234229. The reversal of 2155234223 is 3224325512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2155234223 - 2¹² = 2155230127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2155234229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077617111 + 1077617112.

It is an arithmetic number, because the mean of its divisors is an integer number (1077617112).

Almost surely, 2^2155234223 is an apocalyptic number.

2155234223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155234223 is an equidigital number, since it uses as much as digits as its factorization.

2155234223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 29.

The square root of 2155234223 is about 46424.5002450215. The cubic root of 2155234223 is about 1291.7094143956.

Adding to 2155234223 its reverse (3224325512), we get a palindrome (5379559735).

The spelling of 2155234223 in words is "two billion, one hundred fifty-five million, two hundred thirty-four thousand, two hundred twenty-three".