12353491 has 4 divisors (see below), whose sum is σ = 12427632. Its totient is φ = 12279352.

The previous prime is 12353489. The next prime is 12353501. The reversal of 12353491 is 19435321.

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

It is a cyclic number.

It is not a de Polignac number, because 12353491 - 2¹ = 12353489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12353191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36820 + ... + 37153.

It is an arithmetic number, because the mean of its divisors is an integer number (3106908).

Almost surely, 2^12353491 is an apocalyptic number.

12353491 is a deficient number, since it is larger than the sum of its proper divisors (74141).

12353491 is an equidigital number, since it uses as much as digits as its factorization.

12353491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74140.

The product of its digits is 3240, while the sum is 28.

The square root of 12353491 is about 3514.7533341616. The cubic root of 12353491 is about 231.1691632723.

The spelling of 12353491 in words is "twelve million, three hundred fifty-three thousand, four hundred ninety-one".