2891101 has 2 divisors, whose sum is σ = 2891102. Its totient is φ = 2891100.

The previous prime is 2891093. The next prime is 2891129. The reversal of 2891101 is 1011982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2402500 + 488601 = 1550^2 + 699^2 .

It is a cyclic number.

It is not a de Polignac number, because 2891101 - 2³ = 2891093 is a prime.

It is a Chen prime.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2891171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445550 + 1445551.

It is an arithmetic number, because the mean of its divisors is an integer number (1445551).

2^2891101 is an apocalyptic number.

It is an amenable number.

2891101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891101 is an equidigital number, since it uses as much as digits as its factorization.

2891101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 2891101 is about 1700.3237926936. The cubic root of 2891101 is about 142.4582990732.

It can be divided in two parts, 2891 and 101, that added together give a palindrome (2992).

The spelling of 2891101 in words is "two million, eight hundred ninety-one thousand, one hundred one".