20143316 has 12 divisors (see below), whose sum is σ = 35403732. Its totient is φ = 10027968.

The previous prime is 20143301. The next prime is 20143327. The reversal of 20143316 is 61334102.

It can be written as a sum of positive squares in 2 ways, for example, as 14364100 + 5779216 = 3790^2 + 2404^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9875 + ... + 11738.

It is an arithmetic number, because the mean of its divisors is an integer number (2950311).

Almost surely, 2^20143316 is an apocalyptic number.

It is an amenable number.

20143316 is a deficient number, since it is larger than the sum of its proper divisors (15260416).

20143316 is a wasteful number, since it uses less digits than its factorization.

20143316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21850 (or 21848 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20143316 is about 4488.1305685107. The cubic root of 20143316 is about 272.0885849009.

Adding to 20143316 its reverse (61334102), we get a palindrome (81477418).

It can be divided in two parts, 2014331 and 6, that multiplied together give a triangular number (12085986 = T₄₉₁₆).

The spelling of 20143316 in words is "twenty million, one hundred forty-three thousand, three hundred sixteen".