108277681 has 2 divisors, whose sum is σ = 108277682. Its totient is φ = 108277680.

The previous prime is 108277661. The next prime is 108277703. The reversal of 108277681 is 186772801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69639025 + 38638656 = 8345^2 + 6216^2 .

It is an emirp because it is prime and its reverse (186772801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108277681 - 2²⁵ = 74723249 is a prime.

It is a super-2 number, since 2×108277681² = 23448112405475522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108277601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54138840 + 54138841.

It is an arithmetic number, because the mean of its divisors is an integer number (54138841).

Almost surely, 2^108277681 is an apocalyptic number.

It is an amenable number.

108277681 is a deficient number, since it is larger than the sum of its proper divisors (1).

108277681 is an equidigital number, since it uses as much as digits as its factorization.

108277681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 40.

The square root of 108277681 is about 10405.6562022777. The cubic root of 108277681 is about 476.6281062150.

The spelling of 108277681 in words is "one hundred eight million, two hundred seventy-seven thousand, six hundred eighty-one".