12190439 has 4 divisors (see below), whose sum is σ = 12278280. Its totient is φ = 12102600.

The previous prime is 12190421. The next prime is 12190441. The reversal of 12190439 is 93409121.

It is a happy number.

12190439 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12190439 - 2²⁰ = 11141863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14190439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43712 + ... + 43989.

It is an arithmetic number, because the mean of its divisors is an integer number (3069570).

Almost surely, 2^12190439 is an apocalyptic number.

12190439 is a deficient number, since it is larger than the sum of its proper divisors (87841).

12190439 is an equidigital number, since it uses as much as digits as its factorization.

12190439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87840.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 12190439 is about 3491.4809178914. The cubic root of 12190439 is about 230.1475990221.

The spelling of 12190439 in words is "twelve million, one hundred ninety thousand, four hundred thirty-nine".