12974578 has 8 divisors (see below), whose sum is σ = 19781100. Its totient is φ = 6380880.

The previous prime is 12974569. The next prime is 12974581. The reversal of 12974578 is 87547921.

It can be written as a sum of positive squares in 2 ways, for example, as 12159169 + 815409 = 3487^2 + 903^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53053 + ... + 53296.

Almost surely, 2^12974578 is an apocalyptic number.

12974578 is a deficient number, since it is larger than the sum of its proper divisors (6806522).

12974578 is a wasteful number, since it uses less digits than its factorization.

12974578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106412.

The product of its digits is 141120, while the sum is 43.

The square root of 12974578 is about 3602.0241531672. The cubic root of 12974578 is about 234.9800979071.

The spelling of 12974578 in words is "twelve million, nine hundred seventy-four thousand, five hundred seventy-eight".