108381281 has 4 divisors (see below), whose sum is σ = 108433200. Its totient is φ = 108329364.

The previous prime is 108381257. The next prime is 108381293. The reversal of 108381281 is 182183801.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 108381281 - 2¹⁰ = 108380257 is a prime.

It is a super-2 number, since 2×108381281² = 23493004142401922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108381781) 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, 22691 + ... + 27048.

It is an arithmetic number, because the mean of its divisors is an integer number (27108300).

Almost surely, 2^108381281 is an apocalyptic number.

It is an amenable number.

108381281 is a deficient number, since it is larger than the sum of its proper divisors (51919).

108381281 is an equidigital number, since it uses as much as digits as its factorization.

108381281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51918.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 108381281 is about 10410.6330739298. The cubic root of 108381281 is about 476.7800702247.

The spelling of 108381281 in words is "one hundred eight million, three hundred eighty-one thousand, two hundred eighty-one".