12106919 has 8 divisors (see below), whose sum is σ = 13253760. Its totient is φ = 10967800.

The previous prime is 12106903. The next prime is 12106921. The reversal of 12106919 is 91960121.

12106919 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12106919 - 2⁴ = 12106903 is a prime.

It is a super-2 number, since 2×12106919² = 293154975345122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12106891 and 12106900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12106979) 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, 1652 + ... + 5190.

It is an arithmetic number, because the mean of its divisors is an integer number (1656720).

Almost surely, 2^12106919 is an apocalyptic number.

12106919 is a deficient number, since it is larger than the sum of its proper divisors (1146841).

12106919 is a wasteful number, since it uses less digits than its factorization.

12106919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3861.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 12106919 is about 3479.4998203765. The cubic root of 12106919 is about 229.6207929042.

The spelling of 12106919 in words is "twelve million, one hundred six thousand, nine hundred nineteen".