2145028198 has 8 divisors (see below), whose sum is σ = 3321334080. Its totient is φ = 1037916840.

The previous prime is 2145028177. The next prime is 2145028213. The reversal of 2145028198 is 8918205412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2145028198² = 9202291940430254408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2145028198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17298553 + ... + 17298676.

It is an arithmetic number, because the mean of its divisors is an integer number (415166760).

Almost surely, 2^2145028198 is an apocalyptic number.

2145028198 is a deficient number, since it is larger than the sum of its proper divisors (1176305882).

2145028198 is a wasteful number, since it uses less digits than its factorization.

2145028198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34597262.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 2145028198 is about 46314.4491276750. The cubic root of 2145028198 is about 1289.6672414555.

The spelling of 2145028198 in words is "two billion, one hundred forty-five million, twenty-eight thousand, one hundred ninety-eight".