2172534198 has 32 divisors (see below), whose sum is σ = 4364236800. Its totient is φ = 720992256.

The previous prime is 2172534151. The next prime is 2172534257. The reversal of 2172534198 is 8914352712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2209615 + ... + 2210597.

It is an arithmetic number, because the mean of its divisors is an integer number (136382400).

Almost surely, 2^2172534198 is an apocalyptic number.

2172534198 is an abundant number, since it is smaller than the sum of its proper divisors (2191702602).

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

2172534198 is a wasteful number, since it uses less digits than its factorization.

2172534198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236.

The product of its digits is 120960, while the sum is 42.

The square root of 2172534198 is about 46610.4515961817. The cubic root of 2172534198 is about 1295.1563737367.

The spelling of 2172534198 in words is "two billion, one hundred seventy-two million, five hundred thirty-four thousand, one hundred ninety-eight".