12940015 has 8 divisors (see below), whose sum is σ = 16939728. Its totient is φ = 9410880.

The previous prime is 12940001. The next prime is 12940073. The reversal of 12940015 is 51004921.

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

It is not a de Polignac number, because 12940015 - 2¹³ = 12931823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117582 + ... + 117691.

It is an arithmetic number, because the mean of its divisors is an integer number (2117466).

Almost surely, 2^12940015 is an apocalyptic number.

12940015 is a deficient number, since it is larger than the sum of its proper divisors (3999713).

12940015 is a wasteful number, since it uses less digits than its factorization.

12940015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235289.

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

The square root of 12940015 is about 3597.2232346631. The cubic root of 12940015 is about 234.7712577289.

Adding to 12940015 its reverse (51004921), we get a palindrome (63944936).

The spelling of 12940015 in words is "twelve million, nine hundred forty thousand, fifteen".