2154743 has 2 divisors, whose sum is σ = 2154744. Its totient is φ = 2154742.

The previous prime is 2154731. The next prime is 2154749. The reversal of 2154743 is 3474512.

2154743 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 2154743 - 2⁴ = 2154727 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154749) 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, 1077371 + 1077372.

It is an arithmetic number, because the mean of its divisors is an integer number (1077372).

2^2154743 is an apocalyptic number.

2154743 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154743 is an equidigital number, since it uses as much as digits as its factorization.

2154743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 26.

The square root of 2154743 is about 1467.9042884330. The cubic root of 2154743 is about 129.1611271066.

The spelling of 2154743 in words is "two million, one hundred fifty-four thousand, seven hundred forty-three".