11164231 has 4 divisors (see below), whose sum is σ = 12023032. Its totient is φ = 10305432.

The previous prime is 11164211. The next prime is 11164243. The reversal of 11164231 is 13246111.

11164231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11164231 - 2⁵ = 11164199 is a prime.

It is a super-2 number, since 2×11164231² = 249280107642722, 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 = 11164199 and 11164208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11164211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429381 + ... + 429406.

It is an arithmetic number, because the mean of its divisors is an integer number (3005758).

Almost surely, 2^11164231 is an apocalyptic number.

11164231 is a deficient number, since it is larger than the sum of its proper divisors (858801).

11164231 is an equidigital number, since it uses as much as digits as its factorization.

11164231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858800.

The product of its digits is 144, while the sum is 19.

The square root of 11164231 is about 3341.2918160496. The cubic root of 11164231 is about 223.4993535474.

The spelling of 11164231 in words is "eleven million, one hundred sixty-four thousand, two hundred thirty-one".