2043257 has 2 divisors, whose sum is σ = 2043258. Its totient is φ = 2043256.

The previous prime is 2043199. The next prime is 2043259. The reversal of 2043257 is 7523402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1157776 + 885481 = 1076^2 + 941^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043257 - 2⁶ = 2043193 is a prime.

Together with 2043259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2043259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021628 + 1021629.

It is an arithmetic number, because the mean of its divisors is an integer number (1021629).

2^2043257 is an apocalyptic number.

It is an amenable number.

2043257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043257 is an equidigital number, since it uses as much as digits as its factorization.

2043257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 2043257 is about 1429.4254090368. The cubic root of 2043257 is about 126.8939739635.

Adding to 2043257 its reverse (7523402), we get a palindrome (9566659).

The spelling of 2043257 in words is "two million, forty-three thousand, two hundred fifty-seven".