20546126 has 4 divisors (see below), whose sum is σ = 30819192. Its totient is φ = 10273062.

The previous prime is 20546089. The next prime is 20546129. The reversal of 20546126 is 62164502.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20546095 and 20546104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20546129) 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, 5136530 + ... + 5136533.

It is an arithmetic number, because the mean of its divisors is an integer number (7704798).

Almost surely, 2^20546126 is an apocalyptic number.

20546126 is a deficient number, since it is larger than the sum of its proper divisors (10273066).

20546126 is a wasteful number, since it uses less digits than its factorization.

20546126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10273065.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20546126 is about 4532.7834715548. The cubic root of 20546126 is about 273.8902983155.

The spelling of 20546126 in words is "twenty million, five hundred forty-six thousand, one hundred twenty-six".