159768049 has 4 divisors (see below), whose sum is σ = 182592064. Its totient is φ = 136944036.

The previous prime is 159768041. The next prime is 159768107. The reversal of 159768049 is 940867951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159768049 - 2³ = 159768041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159767993 and 159768011.

It is not an unprimeable number, because it can be changed into a prime (159768041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11411997 + ... + 11412010.

It is an arithmetic number, because the mean of its divisors is an integer number (45648016).

Almost surely, 2^159768049 is an apocalyptic number.

It is an amenable number.

159768049 is a deficient number, since it is larger than the sum of its proper divisors (22824015).

159768049 is an equidigital number, since it uses as much as digits as its factorization.

159768049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22824014.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 159768049 is about 12639.9386470030. The cubic root of 159768049 is about 542.6210581631.

It can be divided in two parts, 15976 and 8049, that added together give a square (24025 = 155²).

The spelling of 159768049 in words is "one hundred fifty-nine million, seven hundred sixty-eight thousand, forty-nine".