108632281 has 2 divisors, whose sum is σ = 108632282. Its totient is φ = 108632280.

The previous prime is 108632273. The next prime is 108632299. The reversal of 108632281 is 182236801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74304400 + 34327881 = 8620^2 + 5859^2 .

It is an emirp because it is prime and its reverse (182236801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108632281 - 2³ = 108632273 is a prime.

It is a super-2 number, since 2×108632281² = 23601944950525922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108632081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54316140 + 54316141.

It is an arithmetic number, because the mean of its divisors is an integer number (54316141).

Almost surely, 2^108632281 is an apocalyptic number.

It is an amenable number.

108632281 is a deficient number, since it is larger than the sum of its proper divisors (1).

108632281 is an equidigital number, since it uses as much as digits as its factorization.

108632281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 108632281 is about 10422.6810850184. The cubic root of 108632281 is about 477.1478444769.

The spelling of 108632281 in words is "one hundred eight million, six hundred thirty-two thousand, two hundred eighty-one".