12936123 has 6 divisors (see below), whose sum is σ = 18685524. Its totient is φ = 8624076.

The previous prime is 12936113. The next prime is 12936149. The reversal of 12936123 is 32163921.

It is not a de Polignac number, because 12936123 - 2¹⁰ = 12935099 is a prime.

It is a super-2 number, since 2×12936123² = 334686556542258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12936103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 718665 + ... + 718682.

It is an arithmetic number, because the mean of its divisors is an integer number (3114254).

Almost surely, 2^12936123 is an apocalyptic number.

12936123 is a deficient number, since it is larger than the sum of its proper divisors (5749401).

12936123 is a wasteful number, since it uses less digits than its factorization.

12936123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437353 (or 1437350 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 12936123 is about 3596.6822211588. The cubic root of 12936123 is about 234.7477177933.

The spelling of 12936123 in words is "twelve million, nine hundred thirty-six thousand, one hundred twenty-three".