545328947 has 2 divisors, whose sum is σ = 545328948. Its totient is φ = 545328946.

The previous prime is 545328923. The next prime is 545328961. The reversal of 545328947 is 749823545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545328947 - 2¹² = 545324851 is a prime.

It is a super-2 number, since 2×545328947² = 594767320872257618, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (545327947) 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, 272664473 + 272664474.

It is an arithmetic number, because the mean of its divisors is an integer number (272664474).

Almost surely, 2^545328947 is an apocalyptic number.

545328947 is a deficient number, since it is larger than the sum of its proper divisors (1).

545328947 is an equidigital number, since it uses as much as digits as its factorization.

545328947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 47.

The square root of 545328947 is about 23352.2792677717. The cubic root of 545328947 is about 816.9952228646.

The spelling of 545328947 in words is "five hundred forty-five million, three hundred twenty-eight thousand, nine hundred forty-seven".