2145937 has 2 divisors, whose sum is σ = 2145938. Its totient is φ = 2145936.

The previous prime is 2145853. The next prime is 2145953. The reversal of 2145937 is 7395412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1661521 + 484416 = 1289^2 + 696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2145937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145899 and 2145908.

It is not a weakly prime, because it can be changed into another prime (2145977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072968 + 1072969.

It is an arithmetic number, because the mean of its divisors is an integer number (1072969).

2^2145937 is an apocalyptic number.

It is an amenable number.

2145937 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145937 is an equidigital number, since it uses as much as digits as its factorization.

2145937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 31.

The square root of 2145937 is about 1464.9017031869. The cubic root of 2145937 is about 128.9849350434.

The spelling of 2145937 in words is "two million, one hundred forty-five thousand, nine hundred thirty-seven".