12521410 has 32 divisors (see below), whose sum is σ = 24883200. Its totient is φ = 4498560.

The previous prime is 12521381. The next prime is 12521447. The reversal of 12521410 is 1412521.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9151 + ... + 10429.

It is an arithmetic number, because the mean of its divisors is an integer number (777600).

Almost surely, 2^12521410 is an apocalyptic number.

12521410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12521410 is a deficient number, since it is larger than the sum of its proper divisors (12361790).

12521410 is a wasteful number, since it uses less digits than its factorization.

12521410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 12521410 is about 3538.5604417616. The cubic root of 12521410 is about 232.2118679920.

Adding to 12521410 its reverse (1412521), we get a palindrome (13933931).

Subtracting from 12521410 its reverse (1412521), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1252 and 1410, that added together give a palindrome (2662).

The spelling of 12521410 in words is "twelve million, five hundred twenty-one thousand, four hundred ten".