159256949 has 2 divisors, whose sum is σ = 159256950. Its totient is φ = 159256948.

The previous prime is 159256943. The next prime is 159256961. The reversal of 159256949 is 949652951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143400625 + 15856324 = 11975^2 + 3982^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159256949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 159256897 and 159256906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159256943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79628474 + 79628475.

It is an arithmetic number, because the mean of its divisors is an integer number (79628475).

Almost surely, 2^159256949 is an apocalyptic number.

It is an amenable number.

159256949 is a deficient number, since it is larger than the sum of its proper divisors (1).

159256949 is an equidigital number, since it uses as much as digits as its factorization.

159256949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 874800, while the sum is 50.

The square root of 159256949 is about 12619.7047905250. The cubic root of 159256949 is about 542.0418228644.

The spelling of 159256949 in words is "one hundred fifty-nine million, two hundred fifty-six thousand, nine hundred forty-nine".