159926849 has 2 divisors, whose sum is σ = 159926850. Its totient is φ = 159926848.

The previous prime is 159926831. The next prime is 159926863. The reversal of 159926849 is 948629951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124166449 + 35760400 = 11143^2 + 5980^2 .

It is an emirp because it is prime and its reverse (948629951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 159926849 - 2⁸ = 159926593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159926849.

It is not a weakly prime, because it can be changed into another prime (159926449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79963424 + 79963425.

It is an arithmetic number, because the mean of its divisors is an integer number (79963425).

Almost surely, 2^159926849 is an apocalyptic number.

It is an amenable number.

159926849 is a deficient number, since it is larger than the sum of its proper divisors (1).

159926849 is an equidigital number, since it uses as much as digits as its factorization.

159926849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 53.

The square root of 159926849 is about 12646.2187629346. The cubic root of 159926849 is about 542.8007763893.

The spelling of 159926849 in words is "one hundred fifty-nine million, nine hundred twenty-six thousand, eight hundred forty-nine".