12040519 has 4 divisors (see below), whose sum is σ = 12128544. Its totient is φ = 11952496.

The previous prime is 12040517. The next prime is 12040529. The reversal of 12040519 is 91504021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12040519 - 2¹ = 12040517 is a prime.

It is a super-2 number, since 2×12040519² = 289948195578722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12040519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040517) 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, 43807 + ... + 44080.

It is an arithmetic number, because the mean of its divisors is an integer number (3032136).

Almost surely, 2^12040519 is an apocalyptic number.

12040519 is a deficient number, since it is larger than the sum of its proper divisors (88025).

12040519 is an equidigital number, since it uses as much as digits as its factorization.

12040519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88024.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 12040519 is about 3469.9451004303. The cubic root of 12040519 is about 229.2002405613.

The spelling of 12040519 in words is "twelve million, forty thousand, five hundred nineteen".