12940075 has 6 divisors (see below), whose sum is σ = 16045724. Its totient is φ = 10352040.

The previous prime is 12940073. The next prime is 12940079. The reversal of 12940075 is 57004921.

It is a happy number.

It is not a de Polignac number, because 12940075 - 2¹ = 12940073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12940073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258777 + ... + 258826.

Almost surely, 2^12940075 is an apocalyptic number.

12940075 is a deficient number, since it is larger than the sum of its proper divisors (3105649).

12940075 is an equidigital number, since it uses as much as digits as its factorization.

12940075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517613 (or 517608 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 12940075 is about 3597.2315744194. The cubic root of 12940075 is about 234.7716205892.

Adding to 12940075 its reverse (57004921), we get a palindrome (69944996).

It can be divided in two parts, 129 and 40075, that added together give a palindrome (40204).

The spelling of 12940075 in words is "twelve million, nine hundred forty thousand, seventy-five".