12126958 has 4 divisors (see below), whose sum is σ = 18190440. Its totient is φ = 6063478.

The previous prime is 12126953. The next prime is 12126971. The reversal of 12126958 is 85962121.

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

It is a super-2 number, since 2×12126958² = 294126220667528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12126953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3031738 + ... + 3031741.

It is an arithmetic number, because the mean of its divisors is an integer number (4547610).

Almost surely, 2^12126958 is an apocalyptic number.

12126958 is a deficient number, since it is larger than the sum of its proper divisors (6063482).

12126958 is an equidigital number, since it uses as much as digits as its factorization.

12126958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6063481.

The product of its digits is 8640, while the sum is 34.

The square root of 12126958 is about 3482.3782103614. The cubic root of 12126958 is about 229.7474101638.

The spelling of 12126958 in words is "twelve million, one hundred twenty-six thousand, nine hundred fifty-eight".