108866149 has 4 divisors (see below), whose sum is σ = 124418464. Its totient is φ = 93313836.

The previous prime is 108866137. The next prime is 108866179. The reversal of 108866149 is 941668801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 108866149 - 2⁵ = 108866117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108866119) 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, 7776147 + ... + 7776160.

It is an arithmetic number, because the mean of its divisors is an integer number (31104616).

Almost surely, 2^108866149 is an apocalyptic number.

It is an amenable number.

108866149 is a deficient number, since it is larger than the sum of its proper divisors (15552315).

108866149 is an equidigital number, since it uses as much as digits as its factorization.

108866149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15552314.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 108866149 is about 10433.8942394487. The cubic root of 108866149 is about 477.4900068265.

The spelling of 108866149 in words is "one hundred eight million, eight hundred sixty-six thousand, one hundred forty-nine".