2140847 has 2 divisors, whose sum is σ = 2140848. Its totient is φ = 2140846.

The previous prime is 2140843. The next prime is 2140849. The reversal of 2140847 is 7480412.

2140847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2140847 - 2² = 2140843 is a prime.

Together with 2140849, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2140843) 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, 1070423 + 1070424.

It is an arithmetic number, because the mean of its divisors is an integer number (1070424).

2^2140847 is an apocalyptic number.

2140847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140847 is an equidigital number, since it uses as much as digits as its factorization.

2140847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 2140847 is about 1463.1633538331. The cubic root of 2140847 is about 128.8828734751.

The spelling of 2140847 in words is "two million, one hundred forty thousand, eight hundred forty-seven".