100318481 has 4 divisors (see below), whose sum is σ = 100340772. Its totient is φ = 100296192.

The previous prime is 100318451. The next prime is 100318483. The reversal of 100318481 is 184813001.

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 47886400 + 52432081 = 6920^2 + 7241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100318481 is a prime.

It is a super-2 number, since 2×100318481² = 20127595260294722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100318481.

It is not an unprimeable number, because it can be changed into a prime (100318483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1760 + ... + 14273.

It is an arithmetic number, because the mean of its divisors is an integer number (25085193).

Almost surely, 2^100318481 is an apocalyptic number.

It is an amenable number.

100318481 is a deficient number, since it is larger than the sum of its proper divisors (22291).

100318481 is an equidigital number, since it uses as much as digits as its factorization.

100318481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22290.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 100318481 is about 10015.9113913812. The cubic root of 100318481 is about 464.6511137948.

The spelling of 100318481 in words is "one hundred million, three hundred eighteen thousand, four hundred eighty-one".