103522821 has 8 divisors (see below), whose sum is σ = 139320864. Its totient is φ = 68370000.

The previous prime is 103522819. The next prime is 103522873. The reversal of 103522821 is 128225301.

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

It is not a de Polignac number, because 103522821 - 2¹ = 103522819 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 103522791 and 103522800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103522421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 160930 + ... + 161571.

It is an arithmetic number, because the mean of its divisors is an integer number (17415108).

Almost surely, 2^103522821 is an apocalyptic number.

It is an amenable number.

103522821 is a deficient number, since it is larger than the sum of its proper divisors (35798043).

103522821 is a wasteful number, since it uses less digits than its factorization.

103522821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322611.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 103522821 is about 10174.6165038295. The cubic root of 103522821 is about 469.5465991190.

The spelling of 103522821 in words is "one hundred three million, five hundred twenty-two thousand, eight hundred twenty-one".