12987574 has 8 divisors (see below), whose sum is σ = 20109888. Its totient is φ = 6284280.

The previous prime is 12987551. The next prime is 12987577. The reversal of 12987574 is 47578921.

12987574 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12987574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12987577) 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, 104677 + ... + 104800.

It is an arithmetic number, because the mean of its divisors is an integer number (2513736).

Almost surely, 2^12987574 is an apocalyptic number.

12987574 is a deficient number, since it is larger than the sum of its proper divisors (7122314).

12987574 is a wasteful number, since it uses less digits than its factorization.

12987574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209510.

The product of its digits is 141120, while the sum is 43.

The square root of 12987574 is about 3603.8276873347. The cubic root of 12987574 is about 235.0585277490.

The spelling of 12987574 in words is "twelve million, nine hundred eighty-seven thousand, five hundred seventy-four".