12057198 has 32 divisors (see below), whose sum is σ = 25788672. Its totient is φ = 3748800.

The previous prime is 12057193. The next prime is 12057203. The reversal of 12057198 is 89175021.

It is an interprime number because it is at equal distance from previous prime (12057193) and next prime (12057203).

It is a super-2 number, since 2×12057198² = 290752047222408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12057193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4593 + ... + 6723.

It is an arithmetic number, because the mean of its divisors is an integer number (805896).

Almost surely, 2^12057198 is an apocalyptic number.

12057198 is an abundant number, since it is smaller than the sum of its proper divisors (13731474).

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

12057198 is a wasteful number, since it uses less digits than its factorization.

12057198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 12057198 is about 3472.3476208467. The cubic root of 12057198 is about 229.3060241240.

The spelling of 12057198 in words is "twelve million, fifty-seven thousand, one hundred ninety-eight".