20126234 has 4 divisors (see below), whose sum is σ = 30189354. Its totient is φ = 10063116.

The previous prime is 20126231. The next prime is 20126237. The reversal of 20126234 is 43262102.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20126231) and next prime (20126237).

It can be written as a sum of positive squares in only one way, i.e., 19829209 + 297025 = 4453^2 + 545^2 .

It is not an unprimeable number, because it can be changed into a prime (20126231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5031557 + ... + 5031560.

Almost surely, 2^20126234 is an apocalyptic number.

20126234 is a deficient number, since it is larger than the sum of its proper divisors (10063120).

20126234 is a wasteful number, since it uses less digits than its factorization.

20126234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10063119.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20126234 is about 4486.2271453862. The cubic root of 20126234 is about 272.0116506688.

Adding to 20126234 its reverse (43262102), we get a palindrome (63388336).

The spelling of 20126234 in words is "twenty million, one hundred twenty-six thousand, two hundred thirty-four".