12270136 has 32 divisors (see below), whose sum is σ = 24021360. Its totient is φ = 5870592.

The previous prime is 12270133. The next prime is 12270157. The reversal of 12270136 is 63107221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12270133) by changing a digit.

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, 17896 + ... + 18568.

Almost surely, 2^12270136 is an apocalyptic number.

It is an amenable number.

12270136 is a deficient number, since it is larger than the sum of its proper divisors (11751224).

12270136 is a wasteful number, since it uses less digits than its factorization.

12270136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 12270136 is about 3502.8753903044. The cubic root of 12270136 is about 230.6480525963.

Adding to 12270136 its reverse (63107221), we get a palindrome (75377357).

The spelling of 12270136 in words is "twelve million, two hundred seventy thousand, one hundred thirty-six".