12942946 has 4 divisors (see below), whose sum is σ = 19414422. Its totient is φ = 6471472.

The previous prime is 12942929. The next prime is 12942949. The reversal of 12942946 is 64924921.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 6817321 + 6125625 = 2611^2 + 2475^2 .

It is not an unprimeable number, because it can be changed into a prime (12942949) 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, 3235735 + ... + 3235738.

Almost surely, 2^12942946 is an apocalyptic number.

12942946 is a deficient number, since it is larger than the sum of its proper divisors (6471476).

12942946 is an equidigital number, since it uses as much as digits as its factorization.

12942946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6471475.

The product of its digits is 31104, while the sum is 37.

The square root of 12942946 is about 3597.6306091649. The cubic root of 12942946 is about 234.7889821444.

The spelling of 12942946 in words is "twelve million, nine hundred forty-two thousand, nine hundred forty-six".