20546133 has 4 divisors (see below), whose sum is σ = 27394848. Its totient is φ = 13697420.

The previous prime is 20546129. The next prime is 20546143. The reversal of 20546133 is 33164502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20546133 - 2² = 20546129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20546143) 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 in 3 ways as a sum of consecutive naturals, for example, 3424353 + ... + 3424358.

It is an arithmetic number, because the mean of its divisors is an integer number (6848712).

Almost surely, 2^20546133 is an apocalyptic number.

It is an amenable number.

20546133 is a deficient number, since it is larger than the sum of its proper divisors (6848715).

20546133 is an equidigital number, since it uses as much as digits as its factorization.

20546133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6848714.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 20546133 is about 4532.7842437072. The cubic root of 20546133 is about 273.8903294200.

The spelling of 20546133 in words is "twenty million, five hundred forty-six thousand, one hundred thirty-three".