12512154 has 16 divisors (see below), whose sum is σ = 25306560. Its totient is φ = 4123680.

The previous prime is 12512147. The next prime is 12512173. The reversal of 12512154 is 45121521.

It is a self number, because there is not a number n which added to its sum of digits gives 12512154.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11182 + ... + 12249.

It is an arithmetic number, because the mean of its divisors is an integer number (1581660).

Almost surely, 2^12512154 is an apocalyptic number.

12512154 is an abundant number, since it is smaller than the sum of its proper divisors (12794406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12512154 is a wasteful number, since it uses less digits than its factorization.

12512154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23525.

The product of its digits is 400, while the sum is 21.

The square root of 12512154 is about 3537.2523234850. The cubic root of 12512154 is about 232.1546358092.

Adding to 12512154 its reverse (45121521), we get a palindrome (57633675).

The spelling of 12512154 in words is "twelve million, five hundred twelve thousand, one hundred fifty-four".