545131031 has 8 divisors (see below), whose sum is σ = 554778960. Its totient is φ = 535496832.

The previous prime is 545131007. The next prime is 545131043. The reversal of 545131031 is 130131545.

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 545131031 - 2²² = 540936727 is a prime.

It is a super-2 number, since 2×545131031² = 594335681918245922, 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 = 545130988 and 545131006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545137031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108041 + ... + 112973.

It is an arithmetic number, because the mean of its divisors is an integer number (69347370).

Almost surely, 2^545131031 is an apocalyptic number.

545131031 is a deficient number, since it is larger than the sum of its proper divisors (9647929).

545131031 is a wasteful number, since it uses less digits than its factorization.

545131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6865.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 545131031 is about 23348.0412668815. The cubic root of 545131031 is about 816.8963736637.

Adding to 545131031 its reverse (130131545), we get a palindrome (675262576).

The spelling of 545131031 in words is "five hundred forty-five million, one hundred thirty-one thousand, thirty-one".