12523016 has 48 divisors (see below), whose sum is σ = 27363420. Its totient is φ = 5350400.

The previous prime is 12522973. The next prime is 12523073. The reversal of 12523016 is 61032521.

It can be written as a sum of positive squares in 2 ways, for example, as 11930116 + 592900 = 3454^2 + 770^2 .

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

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16076 + ... + 16836.

Almost surely, 2^12523016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12523016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13681710).

12523016 is an abundant number, since it is smaller than the sum of its proper divisors (14840404).

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

12523016 is a wasteful number, since it uses less digits than its factorization.

12523016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 12523016 is about 3538.7873629253. The cubic root of 12523016 is about 232.2217954234.

Adding to 12523016 its reverse (61032521), we get a palindrome (73555537).

The spelling of 12523016 in words is "twelve million, five hundred twenty-three thousand, sixteen".