104520144 has 20 divisors (see below), whose sum is σ = 270010496. Its totient is φ = 34840032.

The previous prime is 104520137. The next prime is 104520161. The reversal of 104520144 is 441025401.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 104520144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1088704 + ... + 1088799.

Almost surely, 2^104520144 is an apocalyptic number.

It is an amenable number.

104520144 is an abundant number, since it is smaller than the sum of its proper divisors (165490352).

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

104520144 is a wasteful number, since it uses less digits than its factorization.

104520144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177514 (or 2177508 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 104520144 is about 10223.5093778995. The cubic root of 104520144 is about 471.0496294186.

Adding to 104520144 its reverse (441025401), we get a palindrome (545545545).

The spelling of 104520144 in words is "one hundred four million, five hundred twenty thousand, one hundred forty-four".