100522181 has 8 divisors (see below), whose sum is σ = 103893504. Its totient is φ = 97158960.

The previous prime is 100522133. The next prime is 100522193. The reversal of 100522181 is 181225001.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-100522181 is a prime.

It is a super-2 number, since 2×100522181² = 20209417745993522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100522111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33176 + ... + 36078.

It is an arithmetic number, because the mean of its divisors is an integer number (12986688).

Almost surely, 2^100522181 is an apocalyptic number.

It is an amenable number.

100522181 is a deficient number, since it is larger than the sum of its proper divisors (3371323).

100522181 is a wasteful number, since it uses less digits than its factorization.

100522181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 100522181 is about 10026.0750545764. The cubic root of 100522181 is about 464.9653976641.

Adding to 100522181 its reverse (181225001), we get a palindrome (281747182).

The spelling of 100522181 in words is "one hundred million, five hundred twenty-two thousand, one hundred eighty-one".