2201597 has 2 divisors, whose sum is σ = 2201598. Its totient is φ = 2201596.

The previous prime is 2201581. The next prime is 2201599. The reversal of 2201597 is 7951022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2149156 + 52441 = 1466^2 + 229^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201597 - 2⁴ = 2201581 is a prime.

Together with 2201599, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100798 + 1100799.

It is an arithmetic number, because the mean of its divisors is an integer number (1100799).

2^2201597 is an apocalyptic number.

It is an amenable number.

2201597 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201597 is an equidigital number, since it uses as much as digits as its factorization.

2201597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 2201597 is about 1483.7779483467. Note that the first 3 decimals coincide. The cubic root of 2201597 is about 130.0906074452.

The spelling of 2201597 in words is "two million, two hundred one thousand, five hundred ninety-seven".