15896161 has 4 divisors (see below), whose sum is σ = 15940800. Its totient is φ = 15851524.

The previous prime is 15896137. The next prime is 15896171. The reversal of 15896161 is 16169851.

15896161 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15896161 - 2⁷ = 15896033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15896161.

It is not an unprimeable number, because it can be changed into a prime (15896171) 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, 21781 + ... + 22498.

It is an arithmetic number, because the mean of its divisors is an integer number (3985200).

Almost surely, 2^15896161 is an apocalyptic number.

It is an amenable number.

15896161 is a deficient number, since it is larger than the sum of its proper divisors (44639).

15896161 is an equidigital number, since it uses as much as digits as its factorization.

15896161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44638.

The product of its digits is 12960, while the sum is 37.

The square root of 15896161 is about 3986.9989967393. The cubic root of 15896161 is about 251.4379058512.

It can be divided in two parts, 1589 and 6161, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 15896161 in words is "fifteen million, eight hundred ninety-six thousand, one hundred sixty-one".