12958042 has 4 divisors (see below), whose sum is σ = 19437066. Its totient is φ = 6479020.

The previous prime is 12958037. The next prime is 12958061. The reversal of 12958042 is 24085921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24085921 = 29 ⋅830549.

It can be written as a sum of positive squares in only one way, i.e., 9678321 + 3279721 = 3111^2 + 1811^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 12957995 and 12958013.

It is an unprimeable number.

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, 3239509 + ... + 3239512.

Almost surely, 2^12958042 is an apocalyptic number.

12958042 is a deficient number, since it is larger than the sum of its proper divisors (6479024).

12958042 is an equidigital number, since it uses as much as digits as its factorization.

12958042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479023.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 12958042 is about 3599.7280452834. The cubic root of 12958042 is about 234.8802286910.

The spelling of 12958042 in words is "twelve million, nine hundred fifty-eight thousand, forty-two".