2145198 has 16 divisors (see below), whose sum is σ = 4680576. Its totient is φ = 650040.

The previous prime is 2145197. The next prime is 2145239. The reversal of 2145198 is 8915412.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16186 + ... + 16317.

It is an arithmetic number, because the mean of its divisors is an integer number (292536).

2^2145198 is an apocalyptic number.

2145198 is an abundant number, since it is smaller than the sum of its proper divisors (2535378).

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

2145198 is a wasteful number, since it uses less digits than its factorization.

2145198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32519.

The product of its digits is 2880, while the sum is 30.

The square root of 2145198 is about 1464.6494461133. The cubic root of 2145198 is about 128.9701270891.

The spelling of 2145198 in words is "two million, one hundred forty-five thousand, one hundred ninety-eight".