12951427 has 4 divisors (see below), whose sum is σ = 12959056. Its totient is φ = 12943800.

The previous prime is 12951383. The next prime is 12951431. The reversal of 12951427 is 72415921.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 72415921 = 241 ⋅300481.

It is a cyclic number.

It is not a de Polignac number, because 12951427 - 2¹⁹ = 12427139 is a prime.

It is a super-2 number, since 2×12951427² = 335478922672658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12951457) 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, 13 + ... + 5089.

It is an arithmetic number, because the mean of its divisors is an integer number (3239764).

Almost surely, 2^12951427 is an apocalyptic number.

12951427 is a deficient number, since it is larger than the sum of its proper divisors (7629).

12951427 is an equidigital number, since it uses as much as digits as its factorization.

12951427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628.

The product of its digits is 5040, while the sum is 31.

The square root of 12951427 is about 3598.8091085802. The cubic root of 12951427 is about 234.8402535883.

The spelling of 12951427 in words is "twelve million, nine hundred fifty-one thousand, four hundred twenty-seven".