3164561 has 4 divisors (see below), whose sum is σ = 3168624. Its totient is φ = 3160500.

The previous prime is 3164549. The next prime is 3164569. The reversal of 3164561 is 1654613.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1654613 = 163 ⋅10151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3164561 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 3164561.

It is not an unprimeable number, because it can be changed into a prime (3164569) 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, 455 + ... + 2556.

It is an arithmetic number, because the mean of its divisors is an integer number (792156).

Almost surely, 2^3164561 is an apocalyptic number.

It is an amenable number.

3164561 is a deficient number, since it is larger than the sum of its proper divisors (4063).

3164561 is a wasteful number, since it uses less digits than its factorization.

3164561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4062.

The product of its digits is 2160, while the sum is 26.

The square root of 3164561 is about 1778.9213023628. The cubic root of 3164561 is about 146.8152460116.

The spelling of 3164561 in words is "three million, one hundred sixty-four thousand, five hundred sixty-one".