12996458 has 4 divisors (see below), whose sum is σ = 19494690. Its totient is φ = 6498228.

The previous prime is 12996457. The next prime is 12996499. The reversal of 12996458 is 85469921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85469921 = 4657 ⋅18353.

It can be written as a sum of positive squares in only one way, i.e., 11539609 + 1456849 = 3397^2 + 1207^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12996457) 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, 3249113 + ... + 3249116.

Almost surely, 2^12996458 is an apocalyptic number.

12996458 is a deficient number, since it is larger than the sum of its proper divisors (6498232).

12996458 is an equidigital number, since it uses as much as digits as its factorization.

12996458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6498231.

The product of its digits is 155520, while the sum is 44.

The square root of 12996458 is about 3605.0600549783. The cubic root of 12996458 is about 235.1121118901.

The spelling of 12996458 in words is "twelve million, nine hundred ninety-six thousand, four hundred fifty-eight".