12540067 has 8 divisors (see below), whose sum is σ = 13330656. Its totient is φ = 11755392.

The previous prime is 12540049. The next prime is 12540109. The reversal of 12540067 is 76004521.

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 12540067 - 2⁷ = 12539939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12540167) 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, 3378 + ... + 6040.

It is an arithmetic number, because the mean of its divisors is an integer number (1666332).

Almost surely, 2^12540067 is an apocalyptic number.

12540067 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12540067 is a deficient number, since it is larger than the sum of its proper divisors (790589).

12540067 is a wasteful number, since it uses less digits than its factorization.

12540067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 12540067 is about 3541.1957020193. The cubic root of 12540067 is about 232.3271432643.

Adding to 12540067 its reverse (76004521), we get a palindrome (88544588).

The spelling of 12540067 in words is "twelve million, five hundred forty thousand, sixty-seven".