545140031 has 2 divisors, whose sum is σ = 545140032. Its totient is φ = 545140030.

The previous prime is 545140021. The next prime is 545140051. The reversal of 545140031 is 130041545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545140031 - 2⁶ = 545139967 is a prime.

It is a super-2 number, since 2×545140031² = 594355306797361922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 545139979 and 545140006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545140021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272570015 + 272570016.

It is an arithmetic number, because the mean of its divisors is an integer number (272570016).

Almost surely, 2^545140031 is an apocalyptic number.

545140031 is a deficient number, since it is larger than the sum of its proper divisors (1).

545140031 is an equidigital number, since it uses as much as digits as its factorization.

545140031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 545140031 is about 23348.2340017398. The cubic root of 545140031 is about 816.9008692354.

Adding to 545140031 its reverse (130041545), we get a palindrome (675181576).

The spelling of 545140031 in words is "five hundred forty-five million, one hundred forty thousand, thirty-one".