12042919 has 12 divisors (see below), whose sum is σ = 14623024. Its totient is φ = 9713664.

The previous prime is 12042907. The next prime is 12042923. The reversal of 12042919 is 91924021.

It is a happy number.

It is not a de Polignac number, because 12042919 - 2⁵ = 12042887 is a prime.

It is a super-2 number, since 2×12042919² = 290063796081122, 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 (12042319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 954 + ... + 4999.

Almost surely, 2^12042919 is an apocalyptic number.

12042919 is a deficient number, since it is larger than the sum of its proper divisors (2580105).

12042919 is an equidigital number, since it uses as much as digits as its factorization.

12042919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5994 (or 5977 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 12042919 is about 3470.2909099959. The cubic root of 12042919 is about 229.2154681450.

The spelling of 12042919 in words is "twelve million, forty-two thousand, nine hundred nineteen".