12104651 has 4 divisors (see below), whose sum is σ = 13035792. Its totient is φ = 11173512.

The previous prime is 12104639. The next prime is 12104669. The reversal of 12104651 is 15640121.

12104651 = 538² + 539² + ... + 576².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15640121 = 7 ⋅2234303.

It is a cyclic number.

It is not a de Polignac number, because 12104651 - 2¹⁴ = 12088267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12104671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465551 + ... + 465576.

It is an arithmetic number, because the mean of its divisors is an integer number (3258948).

Almost surely, 2^12104651 is an apocalyptic number.

12104651 is a deficient number, since it is larger than the sum of its proper divisors (931141).

12104651 is an equidigital number, since it uses as much as digits as its factorization.

12104651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931140.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 12104651 is about 3479.1738962001. The cubic root of 12104651 is about 229.6064536524.

Adding to 12104651 its reverse (15640121), we get a palindrome (27744772).

The spelling of 12104651 in words is "twelve million, one hundred four thousand, six hundred fifty-one".