2140057 has 2 divisors, whose sum is σ = 2140058. Its totient is φ = 2140056.

The previous prime is 2140049. The next prime is 2140069. The reversal of 2140057 is 7500412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1648656 + 491401 = 1284^2 + 701^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140057 - 2³ = 2140049 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2140007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070028 + 1070029.

It is an arithmetic number, because the mean of its divisors is an integer number (1070029).

2^2140057 is an apocalyptic number.

It is an amenable number.

2140057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140057 is an equidigital number, since it uses as much as digits as its factorization.

2140057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2140057 is about 1462.8933659020. The cubic root of 2140057 is about 128.8670183803.

Adding to 2140057 its reverse (7500412), we get a palindrome (9640469).

The spelling of 2140057 in words is "two million, one hundred forty thousand, fifty-seven".