12952091 has 4 divisors (see below), whose sum is σ = 13633800. Its totient is φ = 12270384.

The previous prime is 12952057. The next prime is 12952099. The reversal of 12952091 is 19025921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19025921 = 1831 ⋅10391.

It is a cyclic number.

It is not a de Polignac number, because 12952091 - 2¹⁰ = 12951067 is a prime.

It is a super-2 number, since 2×12952091² = 335513322544562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12952099) 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, 340826 + ... + 340863.

It is an arithmetic number, because the mean of its divisors is an integer number (3408450).

Almost surely, 2^12952091 is an apocalyptic number.

12952091 is a deficient number, since it is larger than the sum of its proper divisors (681709).

12952091 is an equidigital number, since it uses as much as digits as its factorization.

12952091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681708.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 12952091 is about 3598.9013601376. The cubic root of 12952091 is about 234.8442668208.

The spelling of 12952091 in words is "twelve million, nine hundred fifty-two thousand, ninety-one".