12955849 has 4 divisors (see below), whose sum is σ = 13074820. Its totient is φ = 12836880.

The previous prime is 12955829. The next prime is 12955889. The reversal of 12955849 is 94855921.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5143824 + 7812025 = 2268^2 + 2795^2 .

It is a cyclic number.

It is not a de Polignac number, because 12955849 - 2¹⁵ = 12923081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12955829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59322 + ... + 59539.

It is an arithmetic number, because the mean of its divisors is an integer number (3268705).

Almost surely, 2^12955849 is an apocalyptic number.

It is an amenable number.

12955849 is a deficient number, since it is larger than the sum of its proper divisors (118971).

12955849 is a wasteful number, since it uses less digits than its factorization.

12955849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118970.

The product of its digits is 129600, while the sum is 43.

The square root of 12955849 is about 3599.4234260503. The cubic root of 12955849 is about 234.8669776817.

The spelling of 12955849 in words is "twelve million, nine hundred fifty-five thousand, eight hundred forty-nine".