12951071 has 8 divisors (see below), whose sum is σ = 14980224. Its totient is φ = 10966680.

The previous prime is 12951067. The next prime is 12951077. The reversal of 12951071 is 17015921.

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 12951071 - 2² = 12951067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12951071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12951077) 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, 10565 + ... + 11726.

It is an arithmetic number, because the mean of its divisors is an integer number (1872528).

Almost surely, 2^12951071 is an apocalyptic number.

12951071 is a deficient number, since it is larger than the sum of its proper divisors (2029153).

12951071 is an equidigital number, since it uses as much as digits as its factorization.

12951071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22381.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 12951071 is about 3598.7596474341. The cubic root of 12951071 is about 234.8381018590.

Adding to 12951071 its reverse (17015921), we get a palindrome (29966992).

It can be divided in two parts, 1295 and 1071, that multiplied together give a triangular number (1386945 = T₁₆₆₅).

The spelling of 12951071 in words is "twelve million, nine hundred fifty-one thousand, seventy-one".