3205061 has 4 divisors (see below), whose sum is σ = 3393612. Its totient is φ = 3016512.

The previous prime is 3205049. The next prime is 3205063. The reversal of 3205061 is 1605023.

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 2540836 + 664225 = 1594^2 + 815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3205061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 188533 = 3205061 / (3 + 2 + 0 + 5 + 0 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3205063) 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, 94250 + ... + 94283.

It is an arithmetic number, because the mean of its divisors is an integer number (848403).

Almost surely, 2^3205061 is an apocalyptic number.

It is an amenable number.

3205061 is a deficient number, since it is larger than the sum of its proper divisors (188551).

3205061 is a wasteful number, since it uses less digits than its factorization.

3205061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188550.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 3205061 is about 1790.2684156293. The cubic root of 3205061 is about 147.4389060402.

The spelling of 3205061 in words is "three million, two hundred five thousand, sixty-one".