8154320329 has 2 divisors, whose sum is σ = 8154320330. Its totient is φ = 8154320328.

The previous prime is 8154320299. The next prime is 8154320347. The reversal of 8154320329 is 9230234518.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5132289600 + 3022030729 = 71640^2 + 54973^2 .

It is a cyclic number.

It is not a de Polignac number, because 8154320329 - 2²⁵ = 8120765897 is a prime.

It is not a weakly prime, because it can be changed into another prime (8154320359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4077160164 + 4077160165.

It is an arithmetic number, because the mean of its divisors is an integer number (4077160165).

Almost surely, 2^8154320329 is an apocalyptic number.

It is an amenable number.

8154320329 is a deficient number, since it is larger than the sum of its proper divisors (1).

8154320329 is an equidigital number, since it uses as much as digits as its factorization.

8154320329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 8154320329 is about 90301.2753453682. The cubic root of 8154320329 is about 2012.7782121915.

The spelling of 8154320329 in words is "eight billion, one hundred fifty-four million, three hundred twenty thousand, three hundred twenty-nine".