12516004 has 12 divisors (see below), whose sum is σ = 22108464. Its totient is φ = 6199304.

The previous prime is 12515999. The next prime is 12516011. The reversal of 12516004 is 40061521.

It is a super-2 number, since 2×12516004² = 313300712256032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14194 + ... + 15049.

It is an arithmetic number, because the mean of its divisors is an integer number (1842372).

Almost surely, 2^12516004 is an apocalyptic number.

It is an amenable number.

12516004 is a deficient number, since it is larger than the sum of its proper divisors (9592460).

12516004 is a wasteful number, since it uses less digits than its factorization.

12516004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29354 (or 29352 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 12516004 is about 3537.7964893419. The cubic root of 12516004 is about 232.1784447577.

Adding to 12516004 its reverse (40061521), we get a palindrome (52577525).

It can be divided in two parts, 125 and 16004, that added together give a square (16129 = 127²).

The spelling of 12516004 in words is "twelve million, five hundred sixteen thousand, four".