12987052 has 24 divisors (see below), whose sum is σ = 24667776. Its totient is φ = 5947008.

The previous prime is 12987017. The next prime is 12987053. The reversal of 12987052 is 25078921.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 12986999 and 12987017.

It is not an unprimeable number, because it can be changed into a prime (12987053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6213 + ... + 8035.

It is an arithmetic number, because the mean of its divisors is an integer number (1027824).

Almost surely, 2^12987052 is an apocalyptic number.

It is an amenable number.

12987052 is a deficient number, since it is larger than the sum of its proper divisors (11680724).

12987052 is a wasteful number, since it uses less digits than its factorization.

12987052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977 (or 1975 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 12987052 is about 3603.7552636104. The cubic root of 12987052 is about 235.0553785287.

The spelling of 12987052 in words is "twelve million, nine hundred eighty-seven thousand, fifty-two".