123845159 has 2 divisors, whose sum is σ = 123845160. Its totient is φ = 123845158.

The previous prime is 123845129. The next prime is 123845201. The reversal of 123845159 is 951548321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123845159 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123845129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61922579 + 61922580.

It is an arithmetic number, because the mean of its divisors is an integer number (61922580).

Almost surely, 2^123845159 is an apocalyptic number.

123845159 is a deficient number, since it is larger than the sum of its proper divisors (1).

123845159 is an equidigital number, since it uses as much as digits as its factorization.

123845159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 38.

The square root of 123845159 is about 11128.5739877129. The cubic root of 123845159 is about 498.4554456165.

The spelling of 123845159 in words is "one hundred twenty-three million, eight hundred forty-five thousand, one hundred fifty-nine".