12521037 has 8 divisors (see below), whose sum is σ = 16787680. Its totient is φ = 8300880.

The previous prime is 12521021. The next prime is 12521053. The reversal of 12521037 is 73012521.

12521037 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12521021) and next prime (12521053).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12521037 - 2⁴ = 12521021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12521017) 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, 10987 + ... + 12072.

It is an arithmetic number, because the mean of its divisors is an integer number (2098460).

Almost surely, 2^12521037 is an apocalyptic number.

It is an amenable number.

12521037 is a deficient number, since it is larger than the sum of its proper divisors (4266643).

12521037 is a wasteful number, since it uses less digits than its factorization.

12521037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23243.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12521037 is about 3538.5077363205. The cubic root of 12521037 is about 232.2095621844.

Adding to 12521037 its reverse (73012521), we get a palindrome (85533558).

The spelling of 12521037 in words is "twelve million, five hundred twenty-one thousand, thirty-seven".