159993249 has 16 divisors (see below), whose sum is σ = 232646400. Its totient is φ = 97209216.

The previous prime is 159993247. The next prime is 159993257. The reversal of 159993249 is 942399951.

It is a happy number.

It is not a de Polignac number, because 159993249 - 2¹ = 159993247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159993247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22884 + ... + 29045.

It is an arithmetic number, because the mean of its divisors is an integer number (14540400).

Almost surely, 2^159993249 is an apocalyptic number.

It is an amenable number.

159993249 is a deficient number, since it is larger than the sum of its proper divisors (72653151).

159993249 is a wasteful number, since it uses less digits than its factorization.

159993249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52024.

The product of its digits is 787320, while the sum is 51.

The square root of 159993249 is about 12648.8437811525. The cubic root of 159993249 is about 542.8758877810.

The spelling of 159993249 in words is "one hundred fifty-nine million, nine hundred ninety-three thousand, two hundred forty-nine".