2045611 has 2 divisors, whose sum is σ = 2045612. Its totient is φ = 2045610.

The previous prime is 2045609. The next prime is 2045629. The reversal of 2045611 is 1165402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2045611 - 2¹ = 2045609 is a prime.

Together with 2045609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2045651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022805 + 1022806.

It is an arithmetic number, because the mean of its divisors is an integer number (1022806).

2^2045611 is an apocalyptic number.

2045611 is the 765-th centered heptagonal number.

2045611 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045611 is an equidigital number, since it uses as much as digits as its factorization.

2045611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2045611 is about 1430.2485797930. The cubic root of 2045611 is about 126.9426860240.

The spelling of 2045611 in words is "two million, forty-five thousand, six hundred eleven".