545453243 has 2 divisors, whose sum is σ = 545453244. Its totient is φ = 545453242.

The previous prime is 545453221. The next prime is 545453261. The reversal of 545453243 is 342354545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545453243 - 2⁶ = 545453179 is a prime.

It is not a weakly prime, because it can be changed into another prime (545453203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272726621 + 272726622.

It is an arithmetic number, because the mean of its divisors is an integer number (272726622).

Almost surely, 2^545453243 is an apocalyptic number.

545453243 is a deficient number, since it is larger than the sum of its proper divisors (1).

545453243 is an equidigital number, since it uses as much as digits as its factorization.

545453243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 35.

The square root of 545453243 is about 23354.9404409431. The cubic root of 545453243 is about 817.0572903100.

The spelling of 545453243 in words is "five hundred forty-five million, four hundred fifty-three thousand, two hundred forty-three".