158845859 has 2 divisors, whose sum is σ = 158845860. Its totient is φ = 158845858.

The previous prime is 158845793. The next prime is 158845867. The reversal of 158845859 is 958548851.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158845859 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158845859.

It is not a weakly prime, because it can be changed into another prime (158845259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79422929 + 79422930.

It is an arithmetic number, because the mean of its divisors is an integer number (79422930).

Almost surely, 2^158845859 is an apocalyptic number.

158845859 is a deficient number, since it is larger than the sum of its proper divisors (1).

158845859 is an equidigital number, since it uses as much as digits as its factorization.

158845859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304000, while the sum is 53.

The square root of 158845859 is about 12603.4066426502. The cubic root of 158845859 is about 541.5750300946.

The spelling of 158845859 in words is "one hundred fifty-eight million, eight hundred forty-five thousand, eight hundred fifty-nine".