159684101 has 4 divisors (see below), whose sum is σ = 166626912. Its totient is φ = 152741292.

The previous prime is 159684079. The next prime is 159684137. The reversal of 159684101 is 101486951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101486951 = 907 ⋅111893.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159684101 is a prime.

It is a super-2 number, since 2×159684101² = 50998024224356402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159684181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3471371 + ... + 3471416.

It is an arithmetic number, because the mean of its divisors is an integer number (41656728).

Almost surely, 2^159684101 is an apocalyptic number.

It is an amenable number.

159684101 is a deficient number, since it is larger than the sum of its proper divisors (6942811).

159684101 is an equidigital number, since it uses as much as digits as its factorization.

159684101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6942810.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 159684101 is about 12636.6174667116. The cubic root of 159684101 is about 542.5260038361.

The spelling of 159684101 in words is "one hundred fifty-nine million, six hundred eighty-four thousand, one hundred one".