2045317 has 2 divisors, whose sum is σ = 2045318. Its totient is φ = 2045316.

The previous prime is 2045311. The next prime is 2045333. The reversal of 2045317 is 7135402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1674436 + 370881 = 1294^2 + 609^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045317 - 2⁷ = 2045189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2045311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022658 + 1022659.

It is an arithmetic number, because the mean of its divisors is an integer number (1022659).

2^2045317 is an apocalyptic number.

It is an amenable number.

2045317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045317 is an equidigital number, since it uses as much as digits as its factorization.

2045317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 2045317 is about 1430.1457967634. The cubic root of 2045317 is about 126.9366042327.

The spelling of 2045317 in words is "two million, forty-five thousand, three hundred seventeen".