100144773 has 12 divisors (see below), whose sum is σ = 153162828. Its totient is φ = 62835840.

The previous prime is 100144769. The next prime is 100144777. The reversal of 100144773 is 377441001.

It is an interprime number because it is at equal distance from previous prime (100144769) and next prime (100144777).

It can be written as a sum of positive squares in 2 ways, for example, as 45724644 + 54420129 = 6762^2 + 7377^2 .

It is not a de Polignac number, because 100144773 - 2² = 100144769 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100144777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 327118 + ... + 327423.

It is an arithmetic number, because the mean of its divisors is an integer number (12763569).

Almost surely, 2^100144773 is an apocalyptic number.

It is an amenable number.

100144773 is a deficient number, since it is larger than the sum of its proper divisors (53018055).

100144773 is a wasteful number, since it uses less digits than its factorization.

100144773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654564 (or 654561 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 100144773 is about 10007.2360319921. The cubic root of 100144773 is about 464.3827676014.

Adding to 100144773 its reverse (377441001), we get a palindrome (477585774).

The spelling of 100144773 in words is "one hundred million, one hundred forty-four thousand, seven hundred seventy-three".