12992019 has 4 divisors (see below), whose sum is σ = 17322696. Its totient is φ = 8661344.

The previous prime is 12992017. The next prime is 12992051. The reversal of 12992019 is 91029921.

12992019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91029921 = 3 ⋅30343307.

It is a cyclic number.

It is not a de Polignac number, because 12992019 - 2¹ = 12992017 is a prime.

It is a super-2 number, since 2×12992019² = 337585115392722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12992017) 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, 2165334 + ... + 2165339.

It is an arithmetic number, because the mean of its divisors is an integer number (4330674).

Almost surely, 2^12992019 is an apocalyptic number.

12992019 is a deficient number, since it is larger than the sum of its proper divisors (4330677).

12992019 is an equidigital number, since it uses as much as digits as its factorization.

12992019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330676.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 12992019 is about 3604.4443399781. Note that the first 3 decimals coincide. The cubic root of 12992019 is about 235.0853409676.

The spelling of 12992019 in words is "twelve million, nine hundred ninety-two thousand, nineteen".