12136138 has 16 divisors (see below), whose sum is σ = 21070080. Its totient is φ = 5134896.

The previous prime is 12136127. The next prime is 12136141. The reversal of 12136138 is 83163121.

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 7 ways as a sum of consecutive naturals, for example, 4381 + ... + 6592.

It is an arithmetic number, because the mean of its divisors is an integer number (1316880).

Almost surely, 2^12136138 is an apocalyptic number.

12136138 is a deficient number, since it is larger than the sum of its proper divisors (8933942).

12136138 is a wasteful number, since it uses less digits than its factorization.

12136138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061.

The product of its digits is 864, while the sum is 25.

The square root of 12136138 is about 3483.6960257749. The cubic root of 12136138 is about 229.8053677946.

Adding to 12136138 its reverse (83163121), we get a palindrome (95299259).

The spelling of 12136138 in words is "twelve million, one hundred thirty-six thousand, one hundred thirty-eight".