2141257 has 2 divisors, whose sum is σ = 2141258. Its totient is φ = 2141256.

The previous prime is 2141219. The next prime is 2141261. The reversal of 2141257 is 7521412.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1394761 + 746496 = 1181^2 + 864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2141257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2141297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070628 + 1070629.

It is an arithmetic number, because the mean of its divisors is an integer number (1070629).

2^2141257 is an apocalyptic number.

It is an amenable number.

2141257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141257 is an equidigital number, since it uses as much as digits as its factorization.

2141257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 560, while the sum is 22.

The square root of 2141257 is about 1463.3034545165. The cubic root of 2141257 is about 128.8911005313.

Adding to 2141257 its reverse (7521412), we get a palindrome (9662669).

The spelling of 2141257 in words is "two million, one hundred forty-one thousand, two hundred fifty-seven".