100031441 has 4 divisors (see below), whose sum is σ = 100216884. Its totient is φ = 99846000.

The previous prime is 100031419. The next prime is 100031443. The reversal of 100031441 is 144130001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81360400 + 18671041 = 9020^2 + 4321^2 .

It is a cyclic number.

It is not a de Polignac number, because 100031441 - 2⁶ = 100031377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100031443) 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 3 ways as a sum of consecutive naturals, for example, 91910 + ... + 92991.

It is an arithmetic number, because the mean of its divisors is an integer number (25054221).

Almost surely, 2^100031441 is an apocalyptic number.

It is an amenable number.

100031441 is a deficient number, since it is larger than the sum of its proper divisors (185443).

100031441 is an equidigital number, since it uses as much as digits as its factorization.

100031441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185442.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 100031441 is about 10001.5719264524. The cubic root of 100031441 is about 464.2075236621.

Adding to 100031441 its reverse (144130001), we get a palindrome (244161442).

The spelling of 100031441 in words is "one hundred million, thirty-one thousand, four hundred forty-one".