104302521 has 12 divisors (see below), whose sum is σ = 150791472. Its totient is φ = 69473976.

The previous prime is 104302441. The next prime is 104302529. The reversal of 104302521 is 125203401.

It is not a de Polignac number, because 104302521 - 2¹⁰ = 104301497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104302494 and 104302503.

It is not an unprimeable number, because it can be changed into a prime (104302529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7330 + ... + 16196.

It is an arithmetic number, because the mean of its divisors is an integer number (12565956).

Almost surely, 2^104302521 is an apocalyptic number.

It is an amenable number.

104302521 is a deficient number, since it is larger than the sum of its proper divisors (46488951).

104302521 is a wasteful number, since it uses less digits than its factorization.

104302521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10180 (or 10177 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 104302521 is about 10212.8605689102. The cubic root of 104302521 is about 470.7224756958.

Adding to 104302521 its reverse (125203401), we get a palindrome (229505922).

The spelling of 104302521 in words is "one hundred four million, three hundred two thousand, five hundred twenty-one".