108231181 has 4 divisors (see below), whose sum is σ = 108652572. Its totient is φ = 107809792.

The previous prime is 108231173. The next prime is 108231203. The reversal of 108231181 is 181132801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 181132801 = 4217 ⋅42953.

It can be written as a sum of positive squares in 2 ways, for example, as 55741156 + 52490025 = 7466^2 + 7245^2 .

It is a cyclic number.

It is not a de Polignac number, because 108231181 - 2³ = 108231173 is a prime.

It is a super-2 number, since 2×108231181² = 23427977081309522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108231131) 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, 210310 + ... + 210823.

It is an arithmetic number, because the mean of its divisors is an integer number (27163143).

Almost surely, 2^108231181 is an apocalyptic number.

It is an amenable number.

108231181 is a deficient number, since it is larger than the sum of its proper divisors (421391).

108231181 is an equidigital number, since it uses as much as digits as its factorization.

108231181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421390.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 108231181 is about 10403.4216006081. The cubic root of 108231181 is about 476.5598669123.

Adding to 108231181 its reverse (181132801), we get a palindrome (289363982).

The spelling of 108231181 in words is "one hundred eight million, two hundred thirty-one thousand, one hundred eighty-one".