12521030 has 8 divisors (see below), whose sum is σ = 22537872. Its totient is φ = 5008408.

The previous prime is 12521021. The next prime is 12521053. The reversal of 12521030 is 3012521.

It is a happy number.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 12520996 and 12521014.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 626042 + ... + 626061.

It is an arithmetic number, because the mean of its divisors is an integer number (2817234).

Almost surely, 2^12521030 is an apocalyptic number.

12521030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12521030 is a deficient number, since it is larger than the sum of its proper divisors (10016842).

12521030 is a wasteful number, since it uses less digits than its factorization.

12521030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252110.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 12521030 is about 3538.5067472028. The cubic root of 12521030 is about 232.2095189115.

Adding to 12521030 its reverse (3012521), we get a palindrome (15533551).

The spelling of 12521030 in words is "twelve million, five hundred twenty-one thousand, thirty".