1108521864 has 192 divisors, whose sum is σ = 3265142400. Its totient is φ = 338688000.

The previous prime is 1108521857. The next prime is 1108521889. The reversal of 1108521864 is 4681258011.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9809872 + ... + 9809984.

It is an arithmetic number, because the mean of its divisors is an integer number (17005950).

Almost surely, 2^1108521864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1108521864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1632571200).

1108521864 is an abundant number, since it is smaller than the sum of its proper divisors (2156620536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1108521864 is a wasteful number, since it uses less digits than its factorization.

1108521864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 1108521864 is about 33294.4719735874. The cubic root of 1108521864 is about 1034.9390036167.

Adding to 1108521864 its reverse (4681258011), we get a palindrome (5789779875).

The spelling of 1108521864 in words is "one billion, one hundred eight million, five hundred twenty-one thousand, eight hundred sixty-four".