2642147 has 2 divisors, whose sum is σ = 2642148. Its totient is φ = 2642146.

The previous prime is 2642141. The next prime is 2642149. The reversal of 2642147 is 7412462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2642147 - 2¹⁰ = 2641123 is a prime.

Together with 2642149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2642141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321073 + 1321074.

It is an arithmetic number, because the mean of its divisors is an integer number (1321074).

2^2642147 is an apocalyptic number.

2642147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2642147 is an equidigital number, since it uses as much as digits as its factorization.

2642147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 26.

The square root of 2642147 is about 1625.4682402311. The cubic root of 2642147 is about 138.2459208085.

The spelling of 2642147 in words is "two million, six hundred forty-two thousand, one hundred forty-seven".