20313415 has 16 divisors (see below), whose sum is σ = 25204608. Its totient is φ = 15706656.

The previous prime is 20313389. The next prime is 20313421. The reversal of 20313415 is 51431302.

It is a cyclic number.

It is not a de Polignac number, because 20313415 - 2⁵ = 20313383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20313392 and 20313401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22564 + ... + 23446.

It is an arithmetic number, because the mean of its divisors is an integer number (1575288).

Almost surely, 2^20313415 is an apocalyptic number.

20313415 is a deficient number, since it is larger than the sum of its proper divisors (4891193).

20313415 is a wasteful number, since it uses less digits than its factorization.

20313415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 20313415 is about 4507.0406033228. The cubic root of 20313415 is about 272.8523176247.

Adding to 20313415 its reverse (51431302), we get a palindrome (71744717).

The spelling of 20313415 in words is "twenty million, three hundred thirteen thousand, four hundred fifteen".