12040071 has 8 divisors (see below), whose sum is σ = 16325760. Its totient is φ = 7890552.

The previous prime is 12040069. The next prime is 12040073. The reversal of 12040071 is 17004021.

It is an interprime number because it is at equal distance from previous prime (12040069) and next prime (12040073).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12040071 - 2¹ = 12040069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12040071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040073) 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, 33835 + ... + 34188.

It is an arithmetic number, because the mean of its divisors is an integer number (2040720).

Almost surely, 2^12040071 is an apocalyptic number.

12040071 is a deficient number, since it is larger than the sum of its proper divisors (4285689).

12040071 is an equidigital number, since it uses as much as digits as its factorization.

12040071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68085.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 12040071 is about 3469.8805454943. The cubic root of 12040071 is about 229.1973978549.

Adding to 12040071 its reverse (17004021), we get a palindrome (29044092).

The spelling of 12040071 in words is "twelve million, forty thousand, seventy-one".