2745161 has 2 divisors, whose sum is σ = 2745162. Its totient is φ = 2745160.

The previous prime is 2745157. The next prime is 2745179. The reversal of 2745161 is 1615472.

2745161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2449225 + 295936 = 1565^2 + 544^2 .

It is a cyclic number.

It is not a de Polignac number, because 2745161 - 2² = 2745157 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2745161.

It is not a weakly prime, because it can be changed into another prime (2745121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1372580 + 1372581.

It is an arithmetic number, because the mean of its divisors is an integer number (1372581).

2^2745161 is an apocalyptic number.

It is an amenable number.

2745161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2745161 is an equidigital number, since it uses as much as digits as its factorization.

2745161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 26.

The square root of 2745161 is about 1656.8527393827. The cubic root of 2745161 is about 140.0197421139.

The spelling of 2745161 in words is "two million, seven hundred forty-five thousand, one hundred sixty-one".