12521346 has 16 divisors (see below), whose sum is σ = 25077600. Its totient is φ = 4167968.

The previous prime is 12521339. The next prime is 12521351. The reversal of 12521346 is 64312521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6925 + ... + 8543.

It is an arithmetic number, because the mean of its divisors is an integer number (1567350).

Almost surely, 2^12521346 is an apocalyptic number.

12521346 is an abundant number, since it is smaller than the sum of its proper divisors (12556254).

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

12521346 is a wasteful number, since it uses less digits than its factorization.

12521346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913.

The product of its digits is 1440, while the sum is 24.

The square root of 12521346 is about 3538.5513985245. The cubic root of 12521346 is about 232.2114723607.

Adding to 12521346 its reverse (64312521), we get a palindrome (76833867).

The spelling of 12521346 in words is "twelve million, five hundred twenty-one thousand, three hundred forty-six".