123535943 has 2 divisors, whose sum is σ = 123535944. Its totient is φ = 123535942.

The previous prime is 123535931. The next prime is 123535949. The reversal of 123535943 is 349535321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123535943 - 2¹² = 123531847 is a prime.

It is a super-2 number, since 2×123535943² = 30522258425798498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123535949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61767971 + 61767972.

It is an arithmetic number, because the mean of its divisors is an integer number (61767972).

Almost surely, 2^123535943 is an apocalyptic number.

123535943 is a deficient number, since it is larger than the sum of its proper divisors (1).

123535943 is an equidigital number, since it uses as much as digits as its factorization.

123535943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 35.

The square root of 123535943 is about 11114.6724198242. The cubic root of 123535943 is about 498.0402528175.

The spelling of 123535943 in words is "one hundred twenty-three million, five hundred thirty-five thousand, nine hundred forty-three".