123554423 has 2 divisors, whose sum is σ = 123554424. Its totient is φ = 123554422.

The previous prime is 123554393. The next prime is 123554467. The reversal of 123554423 is 324455321.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (324455321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123554423 - 2¹⁴ = 123538039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123554323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61777211 + 61777212.

It is an arithmetic number, because the mean of its divisors is an integer number (61777212).

Almost surely, 2^123554423 is an apocalyptic number.

123554423 is a deficient number, since it is larger than the sum of its proper divisors (1).

123554423 is an equidigital number, since it uses as much as digits as its factorization.

123554423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 29.

The square root of 123554423 is about 11115.5037222791. The cubic root of 123554423 is about 498.0650858735.

The spelling of 123554423 in words is "one hundred twenty-three million, five hundred fifty-four thousand, four hundred twenty-three".