159139249 has 2 divisors, whose sum is σ = 159139250. Its totient is φ = 159139248.

The previous prime is 159139243. The next prime is 159139273. The reversal of 159139249 is 942931951.

159139249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159138225 + 1024 = 12615^2 + 32^2 .

It is a cyclic number.

It is not a de Polignac number, because 159139249 - 2³ = 159139241 is a prime.

It is not a weakly prime, because it can be changed into another prime (159139241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79569624 + 79569625.

It is an arithmetic number, because the mean of its divisors is an integer number (79569625).

Almost surely, 2^159139249 is an apocalyptic number.

It is an amenable number.

159139249 is a deficient number, since it is larger than the sum of its proper divisors (1).

159139249 is an equidigital number, since it uses as much as digits as its factorization.

159139249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 43.

The square root of 159139249 is about 12615.0405865380. The cubic root of 159139249 is about 541.9082566448.

The spelling of 159139249 in words is "one hundred fifty-nine million, one hundred thirty-nine thousand, two hundred forty-nine".