545405031 has 12 divisors (see below), whose sum is σ = 798904080. Its totient is φ = 358481760.

The previous prime is 545405023. The next prime is 545405053. The reversal of 545405031 is 130504545.

545405031 is a `hidden beast` number, since 545 + 40 + 50 + 31 = 666.

It is not a de Polignac number, because 545405031 - 2³ = 545405023 is a prime.

It is a super-2 number, since 2×545405031² = 594933295680221922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 545404986 and 545405004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545403031) 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 11 ways as a sum of consecutive naturals, for example, 426126 + ... + 427403.

It is an arithmetic number, because the mean of its divisors is an integer number (66575340).

Almost surely, 2^545405031 is an apocalyptic number.

545405031 is a deficient number, since it is larger than the sum of its proper divisors (253499049).

545405031 is a wasteful number, since it uses less digits than its factorization.

545405031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853606 (or 853603 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 545405031 is about 23353.9082596468. The cubic root of 545405031 is about 817.0332166751.

Adding to 545405031 its reverse (130504545), we get a palindrome (675909576).

The spelling of 545405031 in words is "five hundred forty-five million, four hundred five thousand, thirty-one".