12951229 has 8 divisors (see below), whose sum is σ = 13807800. Its totient is φ = 12105216.

The previous prime is 12951227. The next prime is 12951241. The reversal of 12951229 is 92215921.

It can be written as a sum of positive squares in 4 ways, for example, as 5625 + 12945604 = 75^2 + 3598^2 .

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 12951229 - 2¹ = 12951227 is a prime.

It is a super-2 number, since 2×12951229² = 335468665220882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12951229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12951227) 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, 24 + ... + 5089.

It is an arithmetic number, because the mean of its divisors is an integer number (1725975).

Almost surely, 2^12951229 is an apocalyptic number.

It is an amenable number.

12951229 is a deficient number, since it is larger than the sum of its proper divisors (856571).

12951229 is a wasteful number, since it uses less digits than its factorization.

12951229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5279.

The product of its digits is 3240, while the sum is 31.

The square root of 12951229 is about 3598.7815993750. The cubic root of 12951229 is about 234.8390568448.

The spelling of 12951229 in words is "twelve million, nine hundred fifty-one thousand, two hundred twenty-nine".