12351516 has 24 divisors (see below), whose sum is σ = 29750784. Its totient is φ = 3984240.

The previous prime is 12351511. The next prime is 12351523. The reversal of 12351516 is 61515321.

12351516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12351511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16230 + ... + 16973.

It is an arithmetic number, because the mean of its divisors is an integer number (1239616).

Almost surely, 2^12351516 is an apocalyptic number.

It is an amenable number.

12351516 is an abundant number, since it is smaller than the sum of its proper divisors (17399268).

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

12351516 is a wasteful number, since it uses less digits than its factorization.

12351516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33241 (or 33239 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 12351516 is about 3514.4723643813. The cubic root of 12351516 is about 231.1568433154.

Adding to 12351516 its reverse (61515321), we get a palindrome (73866837).

The spelling of 12351516 in words is "twelve million, three hundred fifty-one thousand, five hundred sixteen".