159620697 has 12 divisors (see below), whose sum is σ = 230807460. Its totient is φ = 106301088.

The previous prime is 159620693. The next prime is 159620707. The reversal of 159620697 is 796026951.

It is a happy number.

159620697 is a `hidden beast` number, since 15 + 9 + 620 + 6 + 9 + 7 = 666.

159620697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 148571721 + 11048976 = 12189^2 + 3324^2 .

It is not a de Polignac number, because 159620697 - 2² = 159620693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159620693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79 + ... + 17867.

It is an arithmetic number, because the mean of its divisors is an integer number (19233955).

Almost surely, 2^159620697 is an apocalyptic number.

It is an amenable number.

159620697 is a deficient number, since it is larger than the sum of its proper divisors (71186763).

159620697 is a wasteful number, since it uses less digits than its factorization.

159620697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18792 (or 18789 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 159620697 is about 12634.1084766595. The cubic root of 159620697 is about 542.4541893969.

The spelling of 159620697 in words is "one hundred fifty-nine million, six hundred twenty thousand, six hundred ninety-seven".