20061172 has 6 divisors (see below), whose sum is σ = 35107058. Its totient is φ = 10030584.

The previous prime is 20061161. The next prime is 20061187. The reversal of 20061172 is 27116002.

It can be written as a sum of positive squares in only one way, i.e., 19131876 + 929296 = 4374^2 + 964^2 .

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 as a sum of consecutive naturals, namely, 2507643 + ... + 2507650.

Almost surely, 2^20061172 is an apocalyptic number.

It is an amenable number.

20061172 is a deficient number, since it is larger than the sum of its proper divisors (15045886).

20061172 is a wasteful number, since it uses less digits than its factorization.

20061172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015297 (or 5015295 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 20061172 is about 4478.9699708750. The cubic root of 20061172 is about 271.7182239124.

Adding to 20061172 its reverse (27116002), we get a palindrome (47177174).

The spelling of 20061172 in words is "twenty million, sixty-one thousand, one hundred seventy-two".