1223542163 has 2 divisors, whose sum is σ = 1223542164. Its totient is φ = 1223542162.

The previous prime is 1223542157. The next prime is 1223542169. The reversal of 1223542163 is 3612453221.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1223542157) and next prime (1223542169).

It is a cyclic number.

It is not a de Polignac number, because 1223542163 - 2²⁴ = 1206764947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223542169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611771081 + 611771082.

It is an arithmetic number, because the mean of its divisors is an integer number (611771082).

Almost surely, 2^1223542163 is an apocalyptic number.

1223542163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223542163 is an equidigital number, since it uses as much as digits as its factorization.

1223542163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 1223542163 is about 34979.1675572761. The cubic root of 1223542163 is about 1069.5628583794.

Adding to 1223542163 its reverse (3612453221), we get a palindrome (4835995384).

The spelling of 1223542163 in words is "one billion, two hundred twenty-three million, five hundred forty-two thousand, one hundred sixty-three".