213420743 has 2 divisors, whose sum is σ = 213420744. Its totient is φ = 213420742.

The previous prime is 213420733. The next prime is 213420793. The reversal of 213420743 is 347024312.

213420743 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 213420743 - 2⁶ = 213420679 is a prime.

It is a Sophie Germain 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 (213420733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106710371 + 106710372.

It is an arithmetic number, because the mean of its divisors is an integer number (106710372).

Almost surely, 2^213420743 is an apocalyptic number.

213420743 is a deficient number, since it is larger than the sum of its proper divisors (1).

213420743 is an equidigital number, since it uses as much as digits as its factorization.

213420743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 213420743 is about 14608.9268257460. The cubic root of 213420743 is about 597.6022296675.

The spelling of 213420743 in words is "two hundred thirteen million, four hundred twenty thousand, seven hundred forty-three".