12031198 has 16 divisors (see below), whose sum is σ = 18390240. Its totient is φ = 5902336.

The previous prime is 12031169. The next prime is 12031211. The reversal of 12031198 is 89113021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45615 + ... + 45877.

It is an arithmetic number, because the mean of its divisors is an integer number (1149390).

Almost surely, 2^12031198 is an apocalyptic number.

12031198 is a deficient number, since it is larger than the sum of its proper divisors (6359042).

12031198 is a wasteful number, since it uses less digits than its factorization.

12031198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 12031198 is about 3468.6017355701. The cubic root of 12031198 is about 229.1410812354.

It can be divided in two parts, 120311 and 98, that added together give a square (120409 = 347²).

The spelling of 12031198 in words is "twelve million, thirty-one thousand, one hundred ninety-eight".