2201957 has 2 divisors, whose sum is σ = 2201958. Its totient is φ = 2201956.

The previous prime is 2201933. The next prime is 2201971. The reversal of 2201957 is 7591022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1366561 + 835396 = 1169^2 + 914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201957 is a prime.

It is a super-2 number, since 2×2201957² = 9697229259698, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100978 + 1100979.

It is an arithmetic number, because the mean of its divisors is an integer number (1100979).

2^2201957 is an apocalyptic number.

It is an amenable number.

2201957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201957 is an equidigital number, since it uses as much as digits as its factorization.

2201957 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 2201957 is about 1483.8992553405. The cubic root of 2201957 is about 130.0976977628.

Adding to 2201957 its reverse (7591022), we get a palindrome (9792979).

The spelling of 2201957 in words is "two million, two hundred one thousand, nine hundred fifty-seven".