12521486 has 8 divisors (see below), whose sum is σ = 19887120. Its totient is φ = 5892448.

The previous prime is 12521479. The next prime is 12521501. The reversal of 12521486 is 68412521.

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

It is a super-2 number, since 2×12521486² = 313575223296392, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184106 + ... + 184173.

It is an arithmetic number, because the mean of its divisors is an integer number (2485890).

Almost surely, 2^12521486 is an apocalyptic number.

12521486 is a deficient number, since it is larger than the sum of its proper divisors (7365634).

12521486 is a wasteful number, since it uses less digits than its factorization.

12521486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368298.

The product of its digits is 3840, while the sum is 29.

The square root of 12521486 is about 3538.5711805756. The cubic root of 12521486 is about 232.2123378024.

The spelling of 12521486 in words is "twelve million, five hundred twenty-one thousand, four hundred eighty-six".