918731113 has 8 divisors (see below), whose sum is σ = 959449536. Its totient is φ = 878077200.

The previous prime is 918731083. The next prime is 918731123. The reversal of 918731113 is 311137819.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 918731113 - 2²¹ = 916633961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (918731123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14223 + ... + 45163.

It is an arithmetic number, because the mean of its divisors is an integer number (119931192).

Almost surely, 2^918731113 is an apocalyptic number.

It is an amenable number.

918731113 is a deficient number, since it is larger than the sum of its proper divisors (40718423).

918731113 is a wasteful number, since it uses less digits than its factorization.

918731113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32255.

The product of its digits is 4536, while the sum is 34.

The square root of 918731113 is about 30310.5775761532. The cubic root of 918731113 is about 972.1414808845.

The spelling of 918731113 in words is "nine hundred eighteen million, seven hundred thirty-one thousand, one hundred thirteen".