159615851 has 2 divisors, whose sum is σ = 159615852. Its totient is φ = 159615850.

The previous prime is 159615811. The next prime is 159615853. The reversal of 159615851 is 158516951.

159615851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159615851 - 2¹⁰ = 159614827 is a prime.

Together with 159615853, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 159615799 and 159615808.

It is not a weakly prime, because it can be changed into another prime (159615853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79807925 + 79807926.

It is an arithmetic number, because the mean of its divisors is an integer number (79807926).

Almost surely, 2^159615851 is an apocalyptic number.

159615851 is a deficient number, since it is larger than the sum of its proper divisors (1).

159615851 is an equidigital number, since it uses as much as digits as its factorization.

159615851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 41.

The square root of 159615851 is about 12633.9166927758. The cubic root of 159615851 is about 542.4486998005.

It can be divided in two parts, 15961 and 5851, that added together give a palindrome (21812).

The spelling of 159615851 in words is "one hundred fifty-nine million, six hundred fifteen thousand, eight hundred fifty-one".