12251198 has 4 divisors (see below), whose sum is σ = 18376800. Its totient is φ = 6125598.

The previous prime is 12251191. The next prime is 12251201. The reversal of 12251198 is 89115221.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12251198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12251191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3062798 + ... + 3062801.

It is an arithmetic number, because the mean of its divisors is an integer number (4594200).

Almost surely, 2^12251198 is an apocalyptic number.

12251198 is a deficient number, since it is larger than the sum of its proper divisors (6125602).

12251198 is an equidigital number, since it uses as much as digits as its factorization.

12251198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6125601.

The product of its digits is 1440, while the sum is 29.

The square root of 12251198 is about 3500.1711386731. The cubic root of 12251198 is about 230.5293290555.

The spelling of 12251198 in words is "twelve million, two hundred fifty-one thousand, one hundred ninety-eight".