1923155233 has 2 divisors, whose sum is σ = 1923155234. Its totient is φ = 1923155232.

The previous prime is 1923155207. The next prime is 1923155239. The reversal of 1923155233 is 3325513291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 982383649 + 940771584 = 31343^2 + 30672^2 .

It is an emirp because it is prime and its reverse (3325513291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1923155233 - 2¹⁷ = 1923024161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1923155239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 961577616 + 961577617.

It is an arithmetic number, because the mean of its divisors is an integer number (961577617).

Almost surely, 2^1923155233 is an apocalyptic number.

It is an amenable number.

1923155233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1923155233 is an equidigital number, since it uses as much as digits as its factorization.

1923155233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 34.

The square root of 1923155233 is about 43853.7938267603. The cubic root of 1923155233 is about 1243.5734660584.

The spelling of 1923155233 in words is "one billion, nine hundred twenty-three million, one hundred fifty-five thousand, two hundred thirty-three".