10565161 has 4 divisors (see below), whose sum is σ = 10658772. Its totient is φ = 10471552.

The previous prime is 10565131. The next prime is 10565173. The reversal of 10565161 is 16156501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3779136 + 6786025 = 1944^2 + 2605^2 .

It is a cyclic number.

It is not a de Polignac number, because 10565161 - 2⁷ = 10565033 is a prime.

It is a super-2 number, since 2×10565161² = 223245253911842, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (10565111) 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, 46636 + ... + 46861.

It is an arithmetic number, because the mean of its divisors is an integer number (2664693).

Almost surely, 2^10565161 is an apocalyptic number.

It is an amenable number.

10565161 is a deficient number, since it is larger than the sum of its proper divisors (93611).

10565161 is an equidigital number, since it uses as much as digits as its factorization.

10565161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93610.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 10565161 is about 3250.4093588347. The cubic root of 10565161 is about 219.4279975472.

The spelling of 10565161 in words is "ten million, five hundred sixty-five thousand, one hundred sixty-one".