12364138 has 4 divisors (see below), whose sum is σ = 18546210. Its totient is φ = 6182068.

The previous prime is 12364129. The next prime is 12364141. The reversal of 12364138 is 83146321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83146321 = 149 ⋅558029.

It can be written as a sum of positive squares in only one way, i.e., 10843849 + 1520289 = 3293^2 + 1233^2 .

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, 3091033 + ... + 3091036.

Almost surely, 2^12364138 is an apocalyptic number.

12364138 is a deficient number, since it is larger than the sum of its proper divisors (6182072).

12364138 is an equidigital number, since it uses as much as digits as its factorization.

12364138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6182071.

The product of its digits is 3456, while the sum is 28.

The square root of 12364138 is about 3516.2676234894. The cubic root of 12364138 is about 231.2355561468.

It can be divided in two parts, 123 and 64138, that added together give a triangular number (64261 = T₃₅₈).

The spelling of 12364138 in words is "twelve million, three hundred sixty-four thousand, one hundred thirty-eight".