159426019 has 2 divisors, whose sum is σ = 159426020. Its totient is φ = 159426018.

The previous prime is 159425953. The next prime is 159426023. The reversal of 159426019 is 910624951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159426019 - 2⁷ = 159425891 is a prime.

It is a super-2 number, since 2×159426019² = 50833311068376722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (159426089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79713009 + 79713010.

It is an arithmetic number, because the mean of its divisors is an integer number (79713010).

Almost surely, 2^159426019 is an apocalyptic number.

159426019 is a deficient number, since it is larger than the sum of its proper divisors (1).

159426019 is an equidigital number, since it uses as much as digits as its factorization.

159426019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 159426019 is about 12626.4016647658. The cubic root of 159426019 is about 542.2335687625.

The spelling of 159426019 in words is "one hundred fifty-nine million, four hundred twenty-six thousand, nineteen".