3170561 has 4 divisors (see below), whose sum is σ = 3177300. Its totient is φ = 3163824.

The previous prime is 3170543. The next prime is 3170579. The reversal of 3170561 is 1650713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1650713 = 137 ⋅12049.

It is an interprime number because it is at equal distance from previous prime (3170543) and next prime (3170579).

It can be written as a sum of positive squares in 2 ways, for example, as 2119936 + 1050625 = 1456^2 + 1025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3170561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3170521) 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, 2606 + ... + 3623.

It is an arithmetic number, because the mean of its divisors is an integer number (794325).

Almost surely, 2^3170561 is an apocalyptic number.

It is an amenable number.

3170561 is a deficient number, since it is larger than the sum of its proper divisors (6739).

3170561 is an equidigital number, since it uses as much as digits as its factorization.

3170561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 3170561 is about 1780.6069190026. The cubic root of 3170561 is about 146.9079745490.

The spelling of 3170561 in words is "three million, one hundred seventy thousand, five hundred sixty-one".