20703133 has 16 divisors (see below), whose sum is σ = 23569920. Its totient is φ = 18014400.

The previous prime is 20703131. The next prime is 20703143. The reversal of 20703133 is 33130702.

It is a cyclic number.

It is not a de Polignac number, because 20703133 - 2¹ = 20703131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20703133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20703131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36891 + ... + 37447.

It is an arithmetic number, because the mean of its divisors is an integer number (1473120).

Almost surely, 2^20703133 is an apocalyptic number.

It is an amenable number.

20703133 is a deficient number, since it is larger than the sum of its proper divisors (2866787).

20703133 is a wasteful number, since it uses less digits than its factorization.

20703133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 20703133 is about 4550.0695599078. The cubic root of 20703133 is about 274.5861897465.

Adding to 20703133 its reverse (33130702), we get a palindrome (53833835).

The spelling of 20703133 in words is "twenty million, seven hundred three thousand, one hundred thirty-three".