100038481 has 2 divisors, whose sum is σ = 100038482. Its totient is φ = 100038480.

The previous prime is 100038409. The next prime is 100038509. The reversal of 100038481 is 184830001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78499600 + 21538881 = 8860^2 + 4641^2 .

It is a cyclic number.

It is not a de Polignac number, because 100038481 - 2²¹ = 97941329 is a prime.

It is a super-2 number, since 2×100038481² = 20015395361574722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100038181) 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 as a sum of consecutive naturals, namely, 50019240 + 50019241.

It is an arithmetic number, because the mean of its divisors is an integer number (50019241).

Almost surely, 2^100038481 is an apocalyptic number.

It is an amenable number.

100038481 is a deficient number, since it is larger than the sum of its proper divisors (1).

100038481 is an equidigital number, since it uses as much as digits as its factorization.

100038481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 100038481 is about 10001.9238649372. The cubic root of 100038481 is about 464.2184133860.

Adding to 100038481 its reverse (184830001), we get a palindrome (284868482).

The spelling of 100038481 in words is "one hundred million, thirty-eight thousand, four hundred eighty-one".