159244649 has 2 divisors, whose sum is σ = 159244650. Its totient is φ = 159244648.

The previous prime is 159244607. The next prime is 159244669. The reversal of 159244649 is 946442951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130942249 + 28302400 = 11443^2 + 5320^2 .

It is a cyclic number.

It is not a de Polignac number, because 159244649 - 2²⁴ = 142467433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (159244669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79622324 + 79622325.

It is an arithmetic number, because the mean of its divisors is an integer number (79622325).

Almost surely, 2^159244649 is an apocalyptic number.

It is an amenable number.

159244649 is a deficient number, since it is larger than the sum of its proper divisors (1).

159244649 is an equidigital number, since it uses as much as digits as its factorization.

159244649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 44.

The square root of 159244649 is about 12619.2174480037. The cubic root of 159244649 is about 542.0278678772.

The spelling of 159244649 in words is "one hundred fifty-nine million, two hundred forty-four thousand, six hundred forty-nine".