192918193 has 12 divisors (see below), whose sum is σ = 220702300. Its totient is φ = 167599872.

The previous prime is 192918169. The next prime is 192918199. The reversal of 192918193 is 391819291.

It can be written as a sum of positive squares in 6 ways, for example, as 4048144 + 188870049 = 2012^2 + 13743^2 .

It is a de Polignac number, because none of the positive numbers 2^k-192918193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (192918199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21918 + ... + 29431.

Almost surely, 2^192918193 is an apocalyptic number.

192918193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

192918193 is a deficient number, since it is larger than the sum of its proper divisors (27784107).

192918193 is a wasteful number, since it uses less digits than its factorization.

192918193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51396 (or 51379 counting only the distinct ones).

The product of its digits is 34992, while the sum is 43.

The square root of 192918193 is about 13889.4993790273. The cubic root of 192918193 is about 577.8179934436.

The spelling of 192918193 in words is "one hundred ninety-two million, nine hundred eighteen thousand, one hundred ninety-three".