12496138 has 4 divisors (see below), whose sum is σ = 18744210. Its totient is φ = 6248068.

The previous prime is 12496117. The next prime is 12496147. The reversal of 12496138 is 83169421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83169421 = 313 ⋅265717.

It can be written as a sum of positive squares in only one way, i.e., 11785489 + 710649 = 3433^2 + 843^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3124033 + ... + 3124036.

Almost surely, 2^12496138 is an apocalyptic number.

12496138 is a deficient number, since it is larger than the sum of its proper divisors (6248072).

12496138 is an equidigital number, since it uses as much as digits as its factorization.

12496138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6248071.

The product of its digits is 10368, while the sum is 34.

The square root of 12496138 is about 3534.9876944623. The cubic root of 12496138 is about 232.0555381306.

The spelling of 12496138 in words is "twelve million, four hundred ninety-six thousand, one hundred thirty-eight".