12849091 has 4 divisors (see below), whose sum is σ = 12878800. Its totient is φ = 12819384.

The previous prime is 12849077. The next prime is 12849107. The reversal of 12849091 is 19094821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19094821 = 223 ⋅85627.

It is a cyclic number.

It is not a de Polignac number, because 12849091 - 2¹⁷ = 12718019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12849041) 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, 14196 + ... + 15073.

It is an arithmetic number, because the mean of its divisors is an integer number (3219700).

Almost surely, 2^12849091 is an apocalyptic number.

12849091 is a deficient number, since it is larger than the sum of its proper divisors (29709).

12849091 is an equidigital number, since it uses as much as digits as its factorization.

12849091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29708.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 12849091 is about 3584.5628743265. The cubic root of 12849091 is about 234.2200853858.

The spelling of 12849091 in words is "twelve million, eight hundred forty-nine thousand, ninety-one".