159240019 has 2 divisors, whose sum is σ = 159240020. Its totient is φ = 159240018.

The previous prime is 159240013. The next prime is 159240043. The reversal of 159240019 is 910042951.

It is a weak prime.

It is an emirp because it is prime and its reverse (910042951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 159240019 - 2¹⁷ = 159108947 is a prime.

It is a super-2 number, since 2×159240019² = 50714767302240722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (159240013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79620009 + 79620010.

It is an arithmetic number, because the mean of its divisors is an integer number (79620010).

Almost surely, 2^159240019 is an apocalyptic number.

159240019 is a deficient number, since it is larger than the sum of its proper divisors (1).

159240019 is an equidigital number, since it uses as much as digits as its factorization.

159240019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 159240019 is about 12619.0339963089. The cubic root of 159240019 is about 542.0226147161.

The spelling of 159240019 in words is "one hundred fifty-nine million, two hundred forty thousand, nineteen".