912118198 has 4 divisors (see below), whose sum is σ = 1368177300. Its totient is φ = 456059098.

The previous prime is 912118157. The next prime is 912118211. The reversal of 912118198 is 891811219.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 912118198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228029548 + ... + 228029551.

It is an arithmetic number, because the mean of its divisors is an integer number (342044325).

Almost surely, 2^912118198 is an apocalyptic number.

912118198 is a deficient number, since it is larger than the sum of its proper divisors (456059102).

912118198 is a wasteful number, since it uses less digits than its factorization.

912118198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456059101.

The product of its digits is 10368, while the sum is 40.

The square root of 912118198 is about 30201.2946411242. The cubic root of 912118198 is about 969.8034100482.

The spelling of 912118198 in words is "nine hundred twelve million, one hundred eighteen thousand, one hundred ninety-eight".