108000521 has 8 divisors (see below), whose sum is σ = 112169160. Its totient is φ = 103897728.

The previous prime is 108000509. The next prime is 108000523. The reversal of 108000521 is 125000801.

It can be written as a sum of positive squares in 4 ways, for example, as 57078025 + 50922496 = 7555^2 + 7136^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108000521 - 2¹⁰ = 107999497 is a prime.

It is a super-2 number, since 2×108000521² = 23328225072542882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108000521.

It is not an unprimeable number, because it can be changed into a prime (108000523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13106 + ... + 19691.

It is an arithmetic number, because the mean of its divisors is an integer number (14021145).

Almost surely, 2^108000521 is an apocalyptic number.

It is an amenable number.

108000521 is a deficient number, since it is larger than the sum of its proper divisors (4168639).

108000521 is an equidigital number, since it uses as much as digits as its factorization.

108000521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32923.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 108000521 is about 10392.3299120072. The cubic root of 108000521 is about 476.2210813633.

The spelling of 108000521 in words is "one hundred eight million, five hundred twenty-one", and thus it is an aban number.