918312196 has 6 divisors (see below), whose sum is σ = 1607046350. Its totient is φ = 459156096.

The previous prime is 918312149. The next prime is 918312209. The reversal of 918312196 is 691213819.

It can be written as a sum of positive squares in only one way, i.e., 915909696 + 2402500 = 30264^2 + 1550^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114789021 + ... + 114789028.

Almost surely, 2^918312196 is an apocalyptic number.

It is an amenable number.

918312196 is a deficient number, since it is larger than the sum of its proper divisors (688734154).

918312196 is a wasteful number, since it uses less digits than its factorization.

918312196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229578053 (or 229578051 counting only the distinct ones).

The product of its digits is 23328, while the sum is 40.

The square root of 918312196 is about 30303.6663788394. Note that the first 3 decimals coincide. The cubic root of 918312196 is about 971.9937015178.

The spelling of 918312196 in words is "nine hundred eighteen million, three hundred twelve thousand, one hundred ninety-six".