2661137 has 2 divisors, whose sum is σ = 2661138. Its totient is φ = 2661136.

The previous prime is 2661119. The next prime is 2661157. The reversal of 2661137 is 7311662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1336336 + 1324801 = 1156^2 + 1151^2 .

It is a cyclic number.

It is not a de Polignac number, because 2661137 - 2¹⁶ = 2595601 is a prime.

It is not a weakly prime, because it can be changed into another prime (2661107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330568 + 1330569.

It is an arithmetic number, because the mean of its divisors is an integer number (1330569).

2^2661137 is an apocalyptic number.

It is an amenable number.

2661137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661137 is an equidigital number, since it uses as much as digits as its factorization.

2661137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 2661137 is about 1631.2991755040. The cubic root of 2661137 is about 138.5763371222.

Adding to 2661137 its reverse (7311662), we get a palindrome (9972799).

The spelling of 2661137 in words is "two million, six hundred sixty-one thousand, one hundred thirty-seven".