12214139 has 4 divisors (see below), whose sum is σ = 13959024. Its totient is φ = 10469256.

The previous prime is 12214099. The next prime is 12214159. The reversal of 12214139 is 93141221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93141221 = 193 ⋅482597.

It is not a de Polignac number, because 12214139 - 2¹⁶ = 12148603 is a prime.

It is a super-2 number, since 2×12214139² = 298370383022642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12214159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872432 + ... + 872445.

It is an arithmetic number, because the mean of its divisors is an integer number (3489756).

Almost surely, 2^12214139 is an apocalyptic number.

12214139 is a deficient number, since it is larger than the sum of its proper divisors (1744885).

12214139 is an equidigital number, since it uses as much as digits as its factorization.

12214139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744884.

The product of its digits is 432, while the sum is 23.

The square root of 12214139 is about 3494.8732451979. The cubic root of 12214139 is about 230.2966493593.

The spelling of 12214139 in words is "twelve million, two hundred fourteen thousand, one hundred thirty-nine".