159615901 has 8 divisors (see below), whose sum is σ = 163848960. Its totient is φ = 155417808.

The previous prime is 159615899. The next prime is 159615917. The reversal of 159615901 is 109516951.

159615901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 159615901 - 2¹ = 159615899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159615961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640 + ... + 17878.

It is an arithmetic number, because the mean of its divisors is an integer number (20481120).

Almost surely, 2^159615901 is an apocalyptic number.

It is an amenable number.

159615901 is a deficient number, since it is larger than the sum of its proper divisors (4233059).

159615901 is a wasteful number, since it uses less digits than its factorization.

159615901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17483.

The product of its (nonzero) digits is 12150, while the sum is 37.

The square root of 159615901 is about 12633.9186715761. The cubic root of 159615901 is about 542.4487564416.

The spelling of 159615901 in words is "one hundred fifty-nine million, six hundred fifteen thousand, nine hundred one".