2152198 has 16 divisors (see below), whose sum is σ = 3324240. Its totient is φ = 1044736.

The previous prime is 2152169. The next prime is 2152201. The reversal of 2152198 is 8912512.

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, 18990 + ... + 19102.

It is an arithmetic number, because the mean of its divisors is an integer number (207765).

2^2152198 is an apocalyptic number.

2152198 is a deficient number, since it is larger than the sum of its proper divisors (1172042).

2152198 is a wasteful number, since it uses less digits than its factorization.

2152198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its digits is 1440, while the sum is 28.

The square root of 2152198 is about 1467.0371501772. The cubic root of 2152198 is about 129.1102556771.

The spelling of 2152198 in words is "two million, one hundred fifty-two thousand, one hundred ninety-eight".