3105961 has 2 divisors, whose sum is σ = 3105962. Its totient is φ = 3105960.

The previous prime is 3105941. The next prime is 3105967. The reversal of 3105961 is 1695013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2702736 + 403225 = 1644^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 3105961 - 2¹³ = 3097769 is a prime.

It is not a weakly prime, because it can be changed into another prime (3105967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1552980 + 1552981.

It is an arithmetic number, because the mean of its divisors is an integer number (1552981).

Almost surely, 2^3105961 is an apocalyptic number.

It is an amenable number.

3105961 is a deficient number, since it is larger than the sum of its proper divisors (1).

3105961 is an equidigital number, since it uses as much as digits as its factorization.

3105961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 3105961 is about 1762.3736834168. The cubic root of 3105961 is about 145.9033732316.

The spelling of 3105961 in words is "three million, one hundred five thousand, nine hundred sixty-one".