12136155 has 32 divisors (see below), whose sum is σ = 20697600. Its totient is φ = 6054912.

The previous prime is 12136151. The next prime is 12136171. The reversal of 12136155 is 55163121.

12136155 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12136155 - 2² = 12136151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12136151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27426 + ... + 27864.

It is an arithmetic number, because the mean of its divisors is an integer number (646800).

Almost surely, 2^12136155 is an apocalyptic number.

12136155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12136155 is a deficient number, since it is larger than the sum of its proper divisors (8561445).

12136155 is a wasteful number, since it uses less digits than its factorization.

12136155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563.

The product of its digits is 900, while the sum is 24.

The square root of 12136155 is about 3483.6984657114. The cubic root of 12136155 is about 229.8054750964.

Adding to 12136155 its reverse (55163121), we get a palindrome (67299276).

The spelling of 12136155 in words is "twelve million, one hundred thirty-six thousand, one hundred fifty-five".