159724801 has 2 divisors, whose sum is σ = 159724802. Its totient is φ = 159724800.

The previous prime is 159724787. The next prime is 159724813. The reversal of 159724801 is 108427951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85747600 + 73977201 = 9260^2 + 8601^2 .

It is an emirp because it is prime and its reverse (108427951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 159724801 - 2⁵ = 159724769 is a prime.

It is not a weakly prime, because it can be changed into another prime (159724861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79862400 + 79862401.

It is an arithmetic number, because the mean of its divisors is an integer number (79862401).

Almost surely, 2^159724801 is an apocalyptic number.

It is an amenable number.

159724801 is a deficient number, since it is larger than the sum of its proper divisors (1).

159724801 is an equidigital number, since it uses as much as digits as its factorization.

159724801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 159724801 is about 12638.2277634168. The cubic root of 159724801 is about 542.5720926087.

The spelling of 159724801 in words is "one hundred fifty-nine million, seven hundred twenty-four thousand, eight hundred one".