100323144 has 32 divisors (see below), whose sum is σ = 278676000. Its totient is φ = 33440976.

The previous prime is 100323143. The next prime is 100323149. The reversal of 100323144 is 441323001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (100323143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232014 + ... + 232445.

It is an arithmetic number, because the mean of its divisors is an integer number (8708625).

Almost surely, 2^100323144 is an apocalyptic number.

It is an amenable number.

100323144 is an abundant number, since it is smaller than the sum of its proper divisors (178352856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100323144 is a wasteful number, since it uses less digits than its factorization.

100323144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464474 (or 464464 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 100323144 is about 10016.1441682915. The cubic root of 100323144 is about 464.6583129820.

Adding to 100323144 its reverse (441323001), we get a palindrome (541646145).

The spelling of 100323144 in words is "one hundred million, three hundred twenty-three thousand, one hundred forty-four".