13558123 has 2 divisors, whose sum is σ = 13558124. Its totient is φ = 13558122.

The previous prime is 13558121. The next prime is 13558147. The reversal of 13558123 is 32185531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13558123 - 2¹ = 13558121 is a prime.

Together with 13558121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13558091 and 13558100.

It is not a weakly prime, because it can be changed into another prime (13558121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6779061 + 6779062.

It is an arithmetic number, because the mean of its divisors is an integer number (6779062).

Almost surely, 2^13558123 is an apocalyptic number.

13558123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13558123 is an equidigital number, since it uses as much as digits as its factorization.

13558123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 28.

The square root of 13558123 is about 3682.1356574684. The cubic root of 13558123 is about 238.4513889621.

The spelling of 13558123 in words is "thirteen million, five hundred fifty-eight thousand, one hundred twenty-three".