918538345 has 4 divisors (see below), whose sum is σ = 1102246020. Its totient is φ = 734830672.

The previous prime is 918538319. The next prime is 918538367. The reversal of 918538345 is 543835819.

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

It can be written as a sum of positive squares in 2 ways, for example, as 661929984 + 256608361 = 25728^2 + 16019^2 .

It is a cyclic number.

It is not a de Polignac number, because 918538345 - 2⁷ = 918538217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 918538295 and 918538304.

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, 91853830 + ... + 91853839.

It is an arithmetic number, because the mean of its divisors is an integer number (275561505).

Almost surely, 2^918538345 is an apocalyptic number.

It is an amenable number.

918538345 is a deficient number, since it is larger than the sum of its proper divisors (183707675).

918538345 is a wasteful number, since it uses less digits than its factorization.

918538345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183707674.

The product of its digits is 518400, while the sum is 46.

The square root of 918538345 is about 30307.3975293162. The cubic root of 918538345 is about 972.0734846107.

The spelling of 918538345 in words is "nine hundred eighteen million, five hundred thirty-eight thousand, three hundred forty-five".