545322431 has 8 divisors (see below), whose sum is σ = 558433920. Its totient is φ = 532230552.

The previous prime is 545322403. The next prime is 545322451. The reversal of 545322431 is 134223545.

It is a happy number.

545322431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 545322431 - 2¹⁰ = 545321407 is a prime.

It is a super-2 number, since 2×545322431² = 594753107503499522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545322394 and 545322403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545322451) 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, 62240 + ... + 70458.

It is an arithmetic number, because the mean of its divisors is an integer number (69804240).

Almost surely, 2^545322431 is an apocalyptic number.

545322431 is a deficient number, since it is larger than the sum of its proper divisors (13111489).

545322431 is a wasteful number, since it uses less digits than its factorization.

545322431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9805.

The product of its digits is 14400, while the sum is 29.

The square root of 545322431 is about 23352.1397520655. The cubic root of 545322431 is about 816.9919688274.

Adding to 545322431 its reverse (134223545), we get a palindrome (679545976).

The spelling of 545322431 in words is "five hundred forty-five million, three hundred twenty-two thousand, four hundred thirty-one".