10918231 has 4 divisors (see below), whose sum is σ = 11270464. Its totient is φ = 10566000.

The previous prime is 10918189. The next prime is 10918247. The reversal of 10918231 is 13281901.

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

It is a cyclic number.

It is not a de Polignac number, because 10918231 - 2¹¹ = 10916183 is a prime.

It is a super-2 number, since 2×10918231² = 238415536338722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10918196 and 10918205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10918631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176070 + ... + 176131.

It is an arithmetic number, because the mean of its divisors is an integer number (2817616).

Almost surely, 2^10918231 is an apocalyptic number.

10918231 is a deficient number, since it is larger than the sum of its proper divisors (352233).

10918231 is an equidigital number, since it uses as much as digits as its factorization.

10918231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352232.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 10918231 is about 3304.2746556544. The cubic root of 10918231 is about 221.8455693556.

The spelling of 10918231 in words is "ten million, nine hundred eighteen thousand, two hundred thirty-one".