123558263 has 2 divisors, whose sum is σ = 123558264. Its totient is φ = 123558262.

The previous prime is 123558209. The next prime is 123558271. The reversal of 123558263 is 362855321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123558263 is a 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 (123528263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61779131 + 61779132.

It is an arithmetic number, because the mean of its divisors is an integer number (61779132).

Almost surely, 2^123558263 is an apocalyptic number.

123558263 is a deficient number, since it is larger than the sum of its proper divisors (1).

123558263 is an equidigital number, since it uses as much as digits as its factorization.

123558263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 35.

The square root of 123558263 is about 11115.6764526501. The cubic root of 123558263 is about 498.0702456783.

The spelling of 123558263 in words is "one hundred twenty-three million, five hundred fifty-eight thousand, two hundred sixty-three".