12040051 has 4 divisors (see below), whose sum is σ = 12050632. Its totient is φ = 12029472.

The previous prime is 12040027. The next prime is 12040057. The reversal of 12040051 is 15004021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12040051 - 2⁹ = 12039539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12040057) 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, 3345 + ... + 5938.

It is an arithmetic number, because the mean of its divisors is an integer number (3012658).

Almost surely, 2^12040051 is an apocalyptic number.

12040051 is a deficient number, since it is larger than the sum of its proper divisors (10581).

12040051 is an equidigital number, since it uses as much as digits as its factorization.

12040051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10580.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 12040051 is about 3469.8776635495. The cubic root of 12040051 is about 229.1972709467.

Adding to 12040051 its reverse (15004021), we get a palindrome (27044072).

The spelling of 12040051 in words is "twelve million, forty thousand, fifty-one".