15608161 has 4 divisors (see below), whose sum is σ = 15622852. Its totient is φ = 15593472.

The previous prime is 15608141. The next prime is 15608179. The reversal of 15608161 is 16180651.

15608161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16180651 = 17 ⋅951803.

It can be written as a sum of positive squares in 2 ways, for example, as 14107536 + 1500625 = 3756^2 + 1225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15608161 is a prime.

It is a super-2 number, since 2×15608161² = 487229379603842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15608111) 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, 5616 + ... + 7921.

It is an arithmetic number, because the mean of its divisors is an integer number (3905713).

Almost surely, 2^15608161 is an apocalyptic number.

It is an amenable number.

15608161 is a deficient number, since it is larger than the sum of its proper divisors (14691).

15608161 is a wasteful number, since it uses less digits than its factorization.

15608161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14690.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 15608161 is about 3950.7165172915. The cubic root of 15608161 is about 249.9101597188.

The spelling of 15608161 in words is "fifteen million, six hundred eight thousand, one hundred sixty-one".