104245520 has 20 divisors (see below), whose sum is σ = 242371020. Its totient is φ = 41698176.

The previous prime is 104245487. The next prime is 104245549. The reversal of 104245520 is 25542401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41011216 + 63234304 = 6404^2 + 7952^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651455 + ... + 651614.

It is an arithmetic number, because the mean of its divisors is an integer number (12118551).

Almost surely, 2^104245520 is an apocalyptic number.

104245520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104245520 is an abundant number, since it is smaller than the sum of its proper divisors (138125500).

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

104245520 is a wasteful number, since it uses less digits than its factorization.

104245520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303082 (or 1303076 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 104245520 is about 10210.0695394302. The cubic root of 104245520 is about 470.6367106191.

Adding to 104245520 its reverse (25542401), we get a palindrome (129787921).

The spelling of 104245520 in words is "one hundred four million, two hundred forty-five thousand, five hundred twenty".