122743 has 2 divisors, whose sum is σ = 122744. Its totient is φ = 122742.

The previous prime is 122741. The next prime is 122753. The reversal of 122743 is 347221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122743 - 2¹ = 122741 is a prime.

Together with 122741, it forms a pair of twin primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 122743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61371 + 61372.

It is an arithmetic number, because the mean of its divisors is an integer number (61372).

2¹²²⁷⁴³ is an apocalyptic number.

122743 is a deficient number, since it is larger than the sum of its proper divisors (1).

122743 is an equidigital number, since it uses as much as digits as its factorization.

122743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 19.

The square root of 122743 is about 350.3469708732. The cubic root of 122743 is about 49.6972370591.

Adding to 122743 its reverse (347221), we get a palindrome (469964).

The spelling of 122743 in words is "one hundred twenty-two thousand, seven hundred forty-three", and thus it is an iban number.