12246991 has 8 divisors (see below), whose sum is σ = 12521984. Its totient is φ = 11975040.

The previous prime is 12246989. The next prime is 12247033. The reversal of 12246991 is 19964221.

12246991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12246991 - 2¹ = 12246989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12246901) 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, 8611 + ... + 9931.

It is an arithmetic number, because the mean of its divisors is an integer number (1565248).

Almost surely, 2^12246991 is an apocalyptic number.

12246991 is a deficient number, since it is larger than the sum of its proper divisors (274993).

12246991 is a wasteful number, since it uses less digits than its factorization.

12246991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521.

The product of its digits is 7776, while the sum is 34.

The square root of 12246991 is about 3499.5701164572. The cubic root of 12246991 is about 230.5029384957.

The spelling of 12246991 in words is "twelve million, two hundred forty-six thousand, nine hundred ninety-one".