9108381 has 4 divisors (see below), whose sum is σ = 12144512. Its totient is φ = 6072252.

The previous prime is 9108331. The next prime is 9108419. The reversal of 9108381 is 1838019.

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 9108381 - 2¹⁴ = 9091997 is a prime.

It is a super-4 number, since 4×9108381⁴ (a number of 29 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

9108381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9108331) 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, 1518061 + ... + 1518066.

It is an arithmetic number, because the mean of its divisors is an integer number (3036128).

Almost surely, 2^9108381 is an apocalyptic number.

It is an amenable number.

9108381 is a deficient number, since it is larger than the sum of its proper divisors (3036131).

9108381 is a wasteful number, since it uses less digits than its factorization.

9108381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036130.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 9108381 is about 3018.0094433252. The cubic root of 9108381 is about 208.8400216512.

The spelling of 9108381 in words is "nine million, one hundred eight thousand, three hundred eighty-one".