12616042 has 4 divisors (see below), whose sum is σ = 18924066. Its totient is φ = 6308020.

The previous prime is 12616031. The next prime is 12616103. The reversal of 12616042 is 24061621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24061621 = 367 ⋅65563.

It can be written as a sum of positive squares in only one way, i.e., 6754801 + 5861241 = 2599^2 + 2421^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3154009 + ... + 3154012.

Almost surely, 2^12616042 is an apocalyptic number.

12616042 is a deficient number, since it is larger than the sum of its proper divisors (6308024).

12616042 is an equidigital number, since it uses as much as digits as its factorization.

12616042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308023.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12616042 is about 3551.9068118406. The cubic root of 12616042 is about 232.7953897640.

Adding to 12616042 its reverse (24061621), we get a palindrome (36677663).

The spelling of 12616042 in words is "twelve million, six hundred sixteen thousand, forty-two".