3205261 has 2 divisors, whose sum is σ = 3205262. Its totient is φ = 3205260.

The previous prime is 3205253. The next prime is 3205289. The reversal of 3205261 is 1625023.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3132900 + 72361 = 1770^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 3205261 - 2³ = 3205253 is a prime.

3205261 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3205291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602630 + 1602631.

It is an arithmetic number, because the mean of its divisors is an integer number (1602631).

Almost surely, 2^3205261 is an apocalyptic number.

It is an amenable number.

3205261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3205261 is an equidigital number, since it uses as much as digits as its factorization.

3205261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 3205261 is about 1790.3242723038. The cubic root of 3205261 is about 147.4419727699.

The spelling of 3205261 in words is "three million, two hundred five thousand, two hundred sixty-one".