20104315 has 32 divisors (see below), whose sum is σ = 30504960. Its totient is φ = 12355200.

The previous prime is 20104313. The next prime is 20104333. The reversal of 20104315 is 51340102.

It is not a de Polignac number, because 20104315 - 2¹ = 20104313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20104313) 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 31 ways as a sum of consecutive naturals, for example, 30085 + ... + 30745.

It is an arithmetic number, because the mean of its divisors is an integer number (953280).

Almost surely, 2^20104315 is an apocalyptic number.

20104315 is a deficient number, since it is larger than the sum of its proper divisors (10400645).

20104315 is a wasteful number, since it uses less digits than its factorization.

20104315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 20104315 is about 4483.7835585586. The cubic root of 20104315 is about 271.9128676721.

Adding to 20104315 its reverse (51340102), we get a palindrome (71444417).

The spelling of 20104315 in words is "twenty million, one hundred four thousand, three hundred fifteen".