1323218153 has 2 divisors, whose sum is σ = 1323218154. Its totient is φ = 1323218152.

The previous prime is 1323218147. The next prime is 1323218219. The reversal of 1323218153 is 3518123231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1086889024 + 236329129 = 32968^2 + 15373^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323218153 - 2⁶ = 1323218089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323218053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661609076 + 661609077.

It is an arithmetic number, because the mean of its divisors is an integer number (661609077).

Almost surely, 2^1323218153 is an apocalyptic number.

It is an amenable number.

1323218153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323218153 is an equidigital number, since it uses as much as digits as its factorization.

1323218153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 1323218153 is about 36376.0656613659. The cubic root of 1323218153 is about 1097.8520489589.

The spelling of 1323218153 in words is "one billion, three hundred twenty-three million, two hundred eighteen thousand, one hundred fifty-three".