20113415 has 16 divisors (see below), whose sum is σ = 28173312. Its totient is φ = 13497504.

The previous prime is 20113403. The next prime is 20113417. The reversal of 20113415 is 51431102.

It is a cyclic number.

It is not a de Polignac number, because 20113415 - 2¹² = 20109319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20113393 and 20113402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113417) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4469 + ... + 7758.

It is an arithmetic number, because the mean of its divisors is an integer number (1760832).

Almost surely, 2^20113415 is an apocalyptic number.

20113415 is a deficient number, since it is larger than the sum of its proper divisors (8059897).

20113415 is a wasteful number, since it uses less digits than its factorization.

20113415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12286.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 20113415 is about 4484.7982117371. The cubic root of 20113415 is about 271.9538876198.

Adding to 20113415 its reverse (51431102), we get a palindrome (71544517).

The spelling of 20113415 in words is "twenty million, one hundred thirteen thousand, four hundred fifteen".