12285538 has 8 divisors (see below), whose sum is σ = 18470700. Its totient is φ = 6128640.

The previous prime is 12285523. The next prime is 12285541. The reversal of 12285538 is 83558221.

It can be written as a sum of positive squares in 2 ways, for example, as 11068929 + 1216609 = 3327^2 + 1103^2 .

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

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5943 + ... + 7738.

Almost surely, 2^12285538 is an apocalyptic number.

12285538 is a deficient number, since it is larger than the sum of its proper divisors (6185162).

12285538 is a wasteful number, since it uses less digits than its factorization.

12285538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14132.

The product of its digits is 19200, while the sum is 34.

The square root of 12285538 is about 3505.0731804058. The cubic root of 12285538 is about 230.7445186814.

The spelling of 12285538 in words is "twelve million, two hundred eighty-five thousand, five hundred thirty-eight".