10108521 has 12 divisors (see below), whose sum is σ = 14630148. Its totient is φ = 6725664.

The previous prime is 10108517. The next prime is 10108541. The reversal of 10108521 is 12580101.

It can be written as a sum of positive squares in 2 ways, for example, as 5546025 + 4562496 = 2355^2 + 2136^2 .

It is not a de Polignac number, because 10108521 - 2² = 10108517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10108494 and 10108503.

It is not an unprimeable number, because it can be changed into a prime (10108541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6231 + ... + 7683.

It is an arithmetic number, because the mean of its divisors is an integer number (1219179).

Almost surely, 2^10108521 is an apocalyptic number.

It is an amenable number.

10108521 is a deficient number, since it is larger than the sum of its proper divisors (4521627).

10108521 is a wasteful number, since it uses less digits than its factorization.

10108521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232 (or 2229 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 10108521 is about 3179.3900358402. The cubic root of 10108521 is about 216.2200047496.

Adding to 10108521 its reverse (12580101), we get a palindrome (22688622).

The spelling of 10108521 in words is "ten million, one hundred eight thousand, five hundred twenty-one".