12952279 has 4 divisors (see below), whose sum is σ = 12965184. Its totient is φ = 12939376.

The previous prime is 12952271. The next prime is 12952297. The reversal of 12952279 is 97225921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12952279 - 2³ = 12952271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12952271) 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 3 ways as a sum of consecutive naturals, for example, 4807 + ... + 7000.

It is an arithmetic number, because the mean of its divisors is an integer number (3241296).

Almost surely, 2^12952279 is an apocalyptic number.

12952279 is a deficient number, since it is larger than the sum of its proper divisors (12905).

12952279 is a wasteful number, since it uses less digits than its factorization.

12952279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12904.

The product of its digits is 22680, while the sum is 37.

The square root of 12952279 is about 3598.9274791249. The cubic root of 12952279 is about 234.8454030726.

It can be divided in two parts, 12952 and 279, that added together give a palindrome (13231).

The spelling of 12952279 in words is "twelve million, nine hundred fifty-two thousand, two hundred seventy-nine".