159900001 has 2 divisors, whose sum is σ = 159900002. Its totient is φ = 159900000.

The previous prime is 159899983. The next prime is 159900017. The reversal of 159900001 is 100009951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136328976 + 23571025 = 11676^2 + 4855^2 .

It is a cyclic number.

It is not a de Polignac number, because 159900001 - 2¹⁵ = 159867233 is a prime.

It is not a weakly prime, because it can be changed into another prime (159900031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79950000 + 79950001.

It is an arithmetic number, because the mean of its divisors is an integer number (79950001).

Almost surely, 2^159900001 is an apocalyptic number.

It is an amenable number.

159900001 is a deficient number, since it is larger than the sum of its proper divisors (1).

159900001 is an equidigital number, since it uses as much as digits as its factorization.

159900001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 25.

The square root of 159900001 is about 12645.1572153137. The cubic root of 159900001 is about 542.7704001456.

Adding to 159900001 its reverse (100009951), we get a palindrome (259909952).

The spelling of 159900001 in words is "one hundred fifty-nine million, nine hundred thousand, one".