12190397 has 8 divisors (see below), whose sum is σ = 12415032. Its totient is φ = 11968000.

The previous prime is 12190379. The next prime is 12190417. The reversal of 12190397 is 79309121.

It is a happy number.

12190397 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 can be written as a sum of positive squares in 4 ways, for example, as 3363556 + 8826841 = 1834^2 + 2971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12190397 - 2⁶ = 12190333 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 (12190307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13397 + ... + 14277.

It is an arithmetic number, because the mean of its divisors is an integer number (1551879).

Almost surely, 2^12190397 is an apocalyptic number.

It is an amenable number.

12190397 is a deficient number, since it is larger than the sum of its proper divisors (224635).

12190397 is a wasteful number, since it uses less digits than its factorization.

12190397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 12190397 is about 3491.4749032465. The cubic root of 12190397 is about 230.1473347109.

The spelling of 12190397 in words is "twelve million, one hundred ninety thousand, three hundred ninety-seven".