20126132 has 24 divisors (see below), whose sum is σ = 38073000. Its totient is φ = 9254016.

The previous prime is 20126131. The next prime is 20126137. The reversal of 20126132 is 23162102.

It can be written as a sum of positive squares in 4 ways, for example, as 1936 + 20124196 = 44^2 + 4486^2 .

It is a super-2 number, since 2×20126132² = 810122378562848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20126132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20126131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17594 + ... + 18702.

It is an arithmetic number, because the mean of its divisors is an integer number (1586375).

Almost surely, 2^20126132 is an apocalyptic number.

It is an amenable number.

20126132 is a deficient number, since it is larger than the sum of its proper divisors (17946868).

20126132 is a wasteful number, since it uses less digits than its factorization.

20126132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475 (or 1473 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20126132 is about 4486.2157772448. The cubic root of 20126132 is about 272.0111911485.

Adding to 20126132 its reverse (23162102), we get a palindrome (43288234).

The spelling of 20126132 in words is "twenty million, one hundred twenty-six thousand, one hundred thirty-two".