12958123 has 2 divisors, whose sum is σ = 12958124. Its totient is φ = 12958122.

The previous prime is 12958117. The next prime is 12958159. The reversal of 12958123 is 32185921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12958123 - 2⁹ = 12957611 is a prime.

It is not a weakly prime, because it can be changed into another prime (12958723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6479061 + 6479062.

It is an arithmetic number, because the mean of its divisors is an integer number (6479062).

Almost surely, 2^12958123 is an apocalyptic number.

12958123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12958123 is an equidigital number, since it uses as much as digits as its factorization.

12958123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The square root of 12958123 is about 3599.7392961158. The cubic root of 12958123 is about 234.8807180977.

The spelling of 12958123 in words is "twelve million, nine hundred fifty-eight thousand, one hundred twenty-three".