12654242 has 4 divisors (see below), whose sum is σ = 18981366. Its totient is φ = 6327120.

The previous prime is 12654241. The next prime is 12654251. The reversal of 12654242 is 24245621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24245621 = 17 ⋅1426213.

It can be written as a sum of positive squares in only one way, i.e., 11895601 + 758641 = 3449^2 + 871^2 .

It is not an unprimeable number, because it can be changed into a prime (12654241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3163559 + ... + 3163562.

Almost surely, 2^12654242 is an apocalyptic number.

12654242 is a deficient number, since it is larger than the sum of its proper divisors (6327124).

12654242 is an equidigital number, since it uses as much as digits as its factorization.

12654242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6327123.

The product of its digits is 3840, while the sum is 26.

The square root of 12654242 is about 3557.2801407817. The cubic root of 12654242 is about 233.0301127063.

Adding to 12654242 its reverse (24245621), we get a palindrome (36899863).

The spelling of 12654242 in words is "twelve million, six hundred fifty-four thousand, two hundred forty-two".