12970042 has 4 divisors (see below), whose sum is σ = 19455066. Its totient is φ = 6485020.

The previous prime is 12970039. The next prime is 12970043. The reversal of 12970042 is 24007921.

12970042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24007921 = 7 ⋅3429703.

It can be written as a sum of positive squares in only one way, i.e., 12809241 + 160801 = 3579^2 + 401^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12969989 and 12970016.

It is not an unprimeable number, because it can be changed into a prime (12970043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3242509 + ... + 3242512.

Almost surely, 2^12970042 is an apocalyptic number.

12970042 is a deficient number, since it is larger than the sum of its proper divisors (6485024).

12970042 is an equidigital number, since it uses as much as digits as its factorization.

12970042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485023.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12970042 is about 3601.3944521532. The cubic root of 12970042 is about 234.9527111728.

Adding to 12970042 its reverse (24007921), we get a palindrome (36977963).

The spelling of 12970042 in words is "twelve million, nine hundred seventy thousand, forty-two".