545947 has 2 divisors, whose sum is σ = 545948. Its totient is φ = 545946.

The previous prime is 545939. The next prime is 545959. The reversal of 545947 is 749545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545947 - 2³ = 545939 is a prime.

It is not a weakly prime, because it can be changed into another prime (545917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272973 + 272974.

It is an arithmetic number, because the mean of its divisors is an integer number (272974).

2⁵⁴⁵⁹⁴⁷ is an apocalyptic number.

545947 is a deficient number, since it is larger than the sum of its proper divisors (1).

545947 is an equidigital number, since it uses as much as digits as its factorization.

545947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 545947 is about 738.8822639636. The cubic root of 545947 is about 81.7303755729.

The spelling of 545947 in words is "five hundred forty-five thousand, nine hundred forty-seven".