20546023 has 2 divisors, whose sum is σ = 20546024. Its totient is φ = 20546022.

The previous prime is 20545957. The next prime is 20546077. The reversal of 20546023 is 32064502.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20546023 - 2¹⁷ = 20414951 is a prime.

It is a super-2 number, since 2×20546023² = 844278122233058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20545985 and 20546003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20546623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10273011 + 10273012.

It is an arithmetic number, because the mean of its divisors is an integer number (10273012).

Almost surely, 2^20546023 is an apocalyptic number.

20546023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20546023 is an equidigital number, since it uses as much as digits as its factorization.

20546023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20546023 is about 4532.7721098683. The cubic root of 20546023 is about 273.8898406339.

The spelling of 20546023 in words is "twenty million, five hundred forty-six thousand, twenty-three".