20130273 has 6 divisors (see below), whose sum is σ = 29077074. Its totient is φ = 13420176.

The previous prime is 20130251. The next prime is 20130281. The reversal of 20130273 is 37203102.

It can be written as a sum of positive squares in only one way, i.e., 10188864 + 9941409 = 3192^2 + 3153^2 .

It is not a de Polignac number, because 20130273 - 2¹² = 20126177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20130203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1118340 + ... + 1118357.

It is an arithmetic number, because the mean of its divisors is an integer number (4846179).

Almost surely, 2^20130273 is an apocalyptic number.

It is an amenable number.

20130273 is a deficient number, since it is larger than the sum of its proper divisors (8946801).

20130273 is a wasteful number, since it uses less digits than its factorization.

20130273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236703 (or 2236700 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 20130273 is about 4486.6772783431. The cubic root of 20130273 is about 272.0298455212.

Adding to 20130273 its reverse (37203102), we get a palindrome (57333375).

The spelling of 20130273 in words is "twenty million, one hundred thirty thousand, two hundred seventy-three".