2891051 has 2 divisors, whose sum is σ = 2891052. Its totient is φ = 2891050.

The previous prime is 2891041. The next prime is 2891081. The reversal of 2891051 is 1501982.

It is a happy number.

2891051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2891051 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2891051.

It is not a weakly prime, because it can be changed into another prime (2891011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445525 + 1445526.

It is an arithmetic number, because the mean of its divisors is an integer number (1445526).

2^2891051 is an apocalyptic number.

2891051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891051 is an equidigital number, since it uses as much as digits as its factorization.

2891051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 2891051 is about 1700.3090895481. The cubic root of 2891051 is about 142.4574778225.

The spelling of 2891051 in words is "two million, eight hundred ninety-one thousand, fifty-one".