2891137 has 2 divisors, whose sum is σ = 2891138. Its totient is φ = 2891136.

The previous prime is 2891129. The next prime is 2891171. The reversal of 2891137 is 7311982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2852721 + 38416 = 1689^2 + 196^2 .

It is a cyclic number.

It is not a de Polignac number, because 2891137 - 2³ = 2891129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2891099 and 2891108.

It is not a weakly prime, because it can be changed into another prime (2891237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445568 + 1445569.

It is an arithmetic number, because the mean of its divisors is an integer number (1445569).

2^2891137 is an apocalyptic number.

It is an amenable number.

2891137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891137 is an equidigital number, since it uses as much as digits as its factorization.

2891137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 31.

The square root of 2891137 is about 1700.3343788796. The cubic root of 2891137 is about 142.4588903678.

The spelling of 2891137 in words is "two million, eight hundred ninety-one thousand, one hundred thirty-seven".