104020501 has 16 divisors (see below), whose sum is σ = 118985328. Its totient is φ = 90086400.

The previous prime is 104020487. The next prime is 104020517. The reversal of 104020501 is 105020401.

It can be written as a sum of positive squares in 8 ways, for example, as 998001 + 103022500 = 999^2 + 10150^2 .

It is not a de Polignac number, because 104020501 - 2⁹ = 104019989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104020571) 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 15 ways as a sum of consecutive naturals, for example, 101371 + ... + 102391.

It is an arithmetic number, because the mean of its divisors is an integer number (7436583).

Almost surely, 2^104020501 is an apocalyptic number.

It is an amenable number.

104020501 is a deficient number, since it is larger than the sum of its proper divisors (14964827).

104020501 is a wasteful number, since it uses less digits than its factorization.

104020501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 104020501 is about 10199.0441218773. The cubic root of 104020501 is about 470.2978359706.

Adding to 104020501 its reverse (105020401), we get a palindrome (209040902).

The spelling of 104020501 in words is "one hundred four million, twenty thousand, five hundred one".