2750161 has 2 divisors, whose sum is σ = 2750162. Its totient is φ = 2750160.

The previous prime is 2750159. The next prime is 2750171. The reversal of 2750161 is 1610572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2660161 + 90000 = 1631^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 2750161 - 2¹ = 2750159 is a prime.

Together with 2750159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2750131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375080 + 1375081.

It is an arithmetic number, because the mean of its divisors is an integer number (1375081).

2^2750161 is an apocalyptic number.

It is an amenable number.

2750161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2750161 is an equidigital number, since it uses as much as digits as its factorization.

2750161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 2750161 is about 1658.3609377937. The cubic root of 2750161 is about 140.1047005905.

The spelling of 2750161 in words is "two million, seven hundred fifty thousand, one hundred sixty-one".