12133998 has 48 divisors (see below), whose sum is σ = 27449136. Its totient is φ = 3870720.

The previous prime is 12133997. The next prime is 12134011. The reversal of 12133998 is 89933121.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133997) 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 23 ways as a sum of consecutive naturals, for example, 47086 + ... + 47342.

It is an arithmetic number, because the mean of its divisors is an integer number (571857).

Almost surely, 2^12133998 is an apocalyptic number.

12133998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12133998 is an abundant number, since it is smaller than the sum of its proper divisors (15315138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12133998 is a wasteful number, since it uses less digits than its factorization.

12133998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 366 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 12133998 is about 3483.3888671809. The cubic root of 12133998 is about 229.7918595875.

It can be divided in two parts, 12133 and 998, that added together give a palindrome (13131).

The spelling of 12133998 in words is "twelve million, one hundred thirty-three thousand, nine hundred ninety-eight".