108607181 has 2 divisors, whose sum is σ = 108607182. Its totient is φ = 108607180.

The previous prime is 108607171. The next prime is 108607199. The reversal of 108607181 is 181706801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66161956 + 42445225 = 8134^2 + 6515^2 .

It is an emirp because it is prime and its reverse (181706801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108607181 is a prime.

It is a super-2 number, since 2×108607181² = 23591039529533522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108607111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54303590 + 54303591.

It is an arithmetic number, because the mean of its divisors is an integer number (54303591).

Almost surely, 2^108607181 is an apocalyptic number.

It is an amenable number.

108607181 is a deficient number, since it is larger than the sum of its proper divisors (1).

108607181 is an equidigital number, since it uses as much as digits as its factorization.

108607181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 108607181 is about 10421.4769106879. The cubic root of 108607181 is about 477.1110925609. Note that the first 3 decimals are identical.

The spelling of 108607181 in words is "one hundred eight million, six hundred seven thousand, one hundred eighty-one".