108217133 has 2 divisors, whose sum is σ = 108217134. Its totient is φ = 108217132.

The previous prime is 108217129. The next prime is 108217229. The reversal of 108217133 is 331712801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100360324 + 7856809 = 10018^2 + 2803^2 .

It is a cyclic number.

It is not a de Polignac number, because 108217133 - 2² = 108217129 is a prime.

It is a plaindrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108217433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54108566 + 54108567.

It is an arithmetic number, because the mean of its divisors is an integer number (54108567).

Almost surely, 2^108217133 is an apocalyptic number.

It is an amenable number.

108217133 is a deficient number, since it is larger than the sum of its proper divisors (1).

108217133 is an equidigital number, since it uses as much as digits as its factorization.

108217133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 108217133 is about 10402.7464162114. The cubic root of 108217133 is about 476.5392474610.

Adding to 108217133 its reverse (331712801), we get a palindrome (439929934).

The spelling of 108217133 in words is "one hundred eight million, two hundred seventeen thousand, one hundred thirty-three".