12090957 has 4 divisors (see below), whose sum is σ = 16121280. Its totient is φ = 8060636.

The previous prime is 12090937. The next prime is 12090959. The reversal of 12090957 is 75909021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12090957 - 2¹⁰ = 12089933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12090959) 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, 2015157 + ... + 2015162.

It is an arithmetic number, because the mean of its divisors is an integer number (4030320).

Almost surely, 2^12090957 is an apocalyptic number.

It is an amenable number.

12090957 is a deficient number, since it is larger than the sum of its proper divisors (4030323).

12090957 is an equidigital number, since it uses as much as digits as its factorization.

12090957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030322.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 12090957 is about 3477.2053433756. The cubic root of 12090957 is about 229.5198363344.

Adding to 12090957 its reverse (75909021), we get a palindrome (87999978).

The spelling of 12090957 in words is "twelve million, ninety thousand, nine hundred fifty-seven".