159542249 has 2 divisors, whose sum is σ = 159542250. Its totient is φ = 159542248.

The previous prime is 159542177. The next prime is 159542291. The reversal of 159542249 is 942245951.

159542249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150798400 + 8743849 = 12280^2 + 2957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159542249 is a prime.

It is not a weakly prime, because it can be changed into another prime (159542749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79771124 + 79771125.

It is an arithmetic number, because the mean of its divisors is an integer number (79771125).

Almost surely, 2^159542249 is an apocalyptic number.

It is an amenable number.

159542249 is a deficient number, since it is larger than the sum of its proper divisors (1).

159542249 is an equidigital number, since it uses as much as digits as its factorization.

159542249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 41.

The square root of 159542249 is about 12631.0034834925. The cubic root of 159542249 is about 542.3653090694.

The spelling of 159542249 in words is "one hundred fifty-nine million, five hundred forty-two thousand, two hundred forty-nine".