545125331 has 4 divisors (see below), whose sum is σ = 546045192. Its totient is φ = 544205472.

The previous prime is 545125327. The next prime is 545125363. The reversal of 545125331 is 133521545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 545125331 - 2² = 545125327 is a prime.

It is a super-2 number, since 2×545125331² = 594323252995719122, 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 = 545125294 and 545125303.

It is not an unprimeable number, because it can be changed into a prime (545125391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459041 + ... + 460226.

It is an arithmetic number, because the mean of its divisors is an integer number (136511298).

Almost surely, 2^545125331 is an apocalyptic number.

545125331 is a deficient number, since it is larger than the sum of its proper divisors (919861).

545125331 is an equidigital number, since it uses as much as digits as its factorization.

545125331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919860.

The product of its digits is 9000, while the sum is 29.

The square root of 545125331 is about 23347.9192006483. The cubic root of 545125331 is about 816.8935264427.

Adding to 545125331 its reverse (133521545), we get a palindrome (678646876).

The spelling of 545125331 in words is "five hundred forty-five million, one hundred twenty-five thousand, three hundred thirty-one".