12352091 has 4 divisors (see below), whose sum is σ = 12365784. Its totient is φ = 12338400.

The previous prime is 12352037. The next prime is 12352099. The reversal of 12352091 is 19025321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19025321 = 7 ⋅2717903.

It is a cyclic number.

It is not a de Polignac number, because 12352091 - 2¹⁴ = 12335707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12352099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5390 + ... + 7331.

It is an arithmetic number, because the mean of its divisors is an integer number (3091446).

Almost surely, 2^12352091 is an apocalyptic number.

12352091 is a deficient number, since it is larger than the sum of its proper divisors (13693).

12352091 is an equidigital number, since it uses as much as digits as its factorization.

12352091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13692.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 12352091 is about 3514.5541680276. The cubic root of 12352091 is about 231.1604302738.

The spelling of 12352091 in words is "twelve million, three hundred fifty-two thousand, ninety-one".