9157148393 has 2 divisors, whose sum is σ = 9157148394. Its totient is φ = 9157148392.

The previous prime is 9157148383. The next prime is 9157148423. The reversal of 9157148393 is 3938417519.

9157148393 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6725968144 + 2431180249 = 82012^2 + 49307^2 .

It is a cyclic number.

It is not a de Polignac number, because 9157148393 - 2⁸ = 9157148137 is a prime.

It is not a weakly prime, because it can be changed into another prime (9157148353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4578574196 + 4578574197.

It is an arithmetic number, because the mean of its divisors is an integer number (4578574197).

Almost surely, 2^9157148393 is an apocalyptic number.

It is an amenable number.

9157148393 is a deficient number, since it is larger than the sum of its proper divisors (1).

9157148393 is an equidigital number, since it uses as much as digits as its factorization.

9157148393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 50.

The square root of 9157148393 is about 95692.9903023205. The cubic root of 9157148393 is about 2092.1207682323.

The spelling of 9157148393 in words is "nine billion, one hundred fifty-seven million, one hundred forty-eight thousand, three hundred ninety-three".