1081217108 has 12 divisors (see below), whose sum is σ = 1943268852. Its totient is φ = 525997440.

The previous prime is 1081217099. The next prime is 1081217141. The reversal of 1081217108 is 8017121801.

It can be written as a sum of positive squares in 2 ways, for example, as 815787844 + 265429264 = 28562^2 + 16292^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3652613 + ... + 3652908.

It is an arithmetic number, because the mean of its divisors is an integer number (161939071).

Almost surely, 2^1081217108 is an apocalyptic number.

It is an amenable number.

1081217108 is a deficient number, since it is larger than the sum of its proper divisors (862051744).

1081217108 is a wasteful number, since it uses less digits than its factorization.

1081217108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7305562 (or 7305560 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 29.

The square root of 1081217108 is about 32881.8659446206. The cubic root of 1081217108 is about 1026.3708354282.

Adding to 1081217108 its reverse (8017121801), we get a palindrome (9098338909).

The spelling of 1081217108 in words is "one billion, eighty-one million, two hundred seventeen thousand, one hundred eight".