545919243 has 8 divisors (see below), whose sum is σ = 734695488. Its totient is φ = 360544584.

The previous prime is 545919139. The next prime is 545919251. The reversal of 545919243 is 342919545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 545919243 - 2¹⁷ = 545788171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545919195 and 545919204.

It is not an unprimeable number, because it can be changed into a prime (545919043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 850021 + ... + 850662.

It is an arithmetic number, because the mean of its divisors is an integer number (91836936).

Almost surely, 2^545919243 is an apocalyptic number.

545919243 is a deficient number, since it is larger than the sum of its proper divisors (188776245).

545919243 is a wasteful number, since it uses less digits than its factorization.

545919243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700793.

The product of its digits is 194400, while the sum is 42.

The square root of 545919243 is about 23364.9147869193. The cubic root of 545919243 is about 817.2899043941.

The spelling of 545919243 in words is "five hundred forty-five million, nine hundred nineteen thousand, two hundred forty-three".