545304331 has 8 divisors (see below), whose sum is σ = 640637424. Its totient is φ = 457597920.

The previous prime is 545304329. The next prime is 545304341. The reversal of 545304331 is 133403545.

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

It is not a de Polignac number, because 545304331 - 2¹ = 545304329 is a prime.

It is a super-2 number, since 2×545304331² = 594713626814715122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 545304331.

It is not an unprimeable number, because it can be changed into a prime (545304341) 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 in 7 ways as a sum of consecutive naturals, for example, 1906516 + ... + 1906801.

It is an arithmetic number, because the mean of its divisors is an integer number (80079678).

Almost surely, 2^545304331 is an apocalyptic number.

545304331 is a deficient number, since it is larger than the sum of its proper divisors (95333093).

545304331 is a wasteful number, since it uses less digits than its factorization.

545304331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813341.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 545304331 is about 23351.7522040638. The cubic root of 545304331 is about 816.9829296991.

Adding to 545304331 its reverse (133403545), we get a palindrome (678707876).

The spelling of 545304331 in words is "five hundred forty-five million, three hundred four thousand, three hundred thirty-one".