20126127 has 16 divisors (see below), whose sum is σ = 32002560. Its totient is φ = 11000352.

The previous prime is 20126101. The next prime is 20126129. The reversal of 20126127 is 72162102.

It is not a de Polignac number, because 20126127 - 2⁸ = 20125871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20126129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20352 + ... + 21317.

It is an arithmetic number, because the mean of its divisors is an integer number (2000160).

Almost surely, 2^20126127 is an apocalyptic number.

20126127 is a deficient number, since it is larger than the sum of its proper divisors (11876433).

20126127 is a wasteful number, since it uses less digits than its factorization.

20126127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41702.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 20126127 is about 4486.2152199822. The cubic root of 20126127 is about 272.0111686230.

Adding to 20126127 its reverse (72162102), we get a palindrome (92288229).

The spelling of 20126127 in words is "twenty million, one hundred twenty-six thousand, one hundred twenty-seven".