2345543 has 2 divisors, whose sum is σ = 2345544. Its totient is φ = 2345542.

The previous prime is 2345537. The next prime is 2345573. The reversal of 2345543 is 3455432.

2345543 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 not a de Polignac number, because 2345543 - 2⁶ = 2345479 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2345533) 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, 1172771 + 1172772.

It is an arithmetic number, because the mean of its divisors is an integer number (1172772).

2^2345543 is an apocalyptic number.

2345543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2345543 is an equidigital number, since it uses as much as digits as its factorization.

2345543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 26.

The square root of 2345543 is about 1531.5165686338. The cubic root of 2345543 is about 132.8661853460.

The spelling of 2345543 in words is "two million, three hundred forty-five thousand, five hundred forty-three".