123589943 has 2 divisors, whose sum is σ = 123589944. Its totient is φ = 123589942.

The previous prime is 123589937. The next prime is 123589981. The reversal of 123589943 is 349985321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123589943 - 2¹⁴ = 123573559 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 123589894 and 123589903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123589933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61794971 + 61794972.

It is an arithmetic number, because the mean of its divisors is an integer number (61794972).

Almost surely, 2^123589943 is an apocalyptic number.

123589943 is a deficient number, since it is larger than the sum of its proper divisors (1).

123589943 is an equidigital number, since it uses as much as digits as its factorization.

123589943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 123589943 is about 11117.1013758084. The cubic root of 123589943 is about 498.1128099893.

The spelling of 123589943 in words is "one hundred twenty-three million, five hundred eighty-nine thousand, nine hundred forty-three".