159700109 has 4 divisors (see below), whose sum is σ = 166643616. Its totient is φ = 152756604.

The previous prime is 159700097. The next prime is 159700133. The reversal of 159700109 is 901007951.

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: 901007951 = 6007 ⋅149993.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159700109 is a prime.

It is a super-2 number, since 2×159700109² = 51008249629223762, 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 (159700139) 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, 3471719 + ... + 3471764.

It is an arithmetic number, because the mean of its divisors is an integer number (41660904).

Almost surely, 2^159700109 is an apocalyptic number.

It is an amenable number.

159700109 is a deficient number, since it is larger than the sum of its proper divisors (6943507).

159700109 is an equidigital number, since it uses as much as digits as its factorization.

159700109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6943506.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 159700109 is about 12637.2508481869. The cubic root of 159700109 is about 542.5441322660.

The spelling of 159700109 in words is "one hundred fifty-nine million, seven hundred thousand, one hundred nine".