12379519 has 4 divisors (see below), whose sum is σ = 13107744. Its totient is φ = 11651296.

The previous prime is 12379513. The next prime is 12379529. The reversal of 12379519 is 91597321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91597321 = 41 ⋅2234081.

It is a cyclic number.

It is not a de Polignac number, because 12379519 - 2⁵ = 12379487 is a prime.

It is a super-2 number, since 2×12379519² = 306504981342722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12379513) 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, 364087 + ... + 364120.

It is an arithmetic number, because the mean of its divisors is an integer number (3276936).

Almost surely, 2^12379519 is an apocalyptic number.

12379519 is a deficient number, since it is larger than the sum of its proper divisors (728225).

12379519 is an equidigital number, since it uses as much as digits as its factorization.

12379519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728224.

The product of its digits is 17010, while the sum is 37.

The square root of 12379519 is about 3518.4540639321. The cubic root of 12379519 is about 231.3314021677.

The spelling of 12379519 in words is "twelve million, three hundred seventy-nine thousand, five hundred nineteen".