920144543 has 2 divisors, whose sum is σ = 920144544. Its totient is φ = 920144542.

The previous prime is 920144539. The next prime is 920144551. The reversal of 920144543 is 345441029.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 920144543 - 2² = 920144539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920144243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460072271 + 460072272.

It is an arithmetic number, because the mean of its divisors is an integer number (460072272).

Almost surely, 2^920144543 is an apocalyptic number.

920144543 is a deficient number, since it is larger than the sum of its proper divisors (1).

920144543 is an equidigital number, since it uses as much as digits as its factorization.

920144543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 920144543 is about 30333.8844034192. The cubic root of 920144543 is about 972.6397586627.

The spelling of 920144543 in words is "nine hundred twenty million, one hundred forty-four thousand, five hundred forty-three".