12521196 has 48 divisors (see below), whose sum is σ = 32686080. Its totient is φ = 4145040.

The previous prime is 12521189. The next prime is 12521203. The reversal of 12521196 is 69112521.

It is an interprime number because it is at equal distance from previous prime (12521189) and next prime (12521203).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 20325 + ... + 20931.

It is an arithmetic number, because the mean of its divisors is an integer number (680960).

Almost surely, 2^12521196 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 12521196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16343040).

12521196 is an abundant number, since it is smaller than the sum of its proper divisors (20164884).

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

12521196 is a wasteful number, since it uses less digits than its factorization.

12521196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 803 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 12521196 is about 3538.5302033471. The cubic root of 12521196 is about 232.2105450946.

It can be divided in two parts, 125 and 21196, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 12521196 in words is "twelve million, five hundred twenty-one thousand, one hundred ninety-six".