545770931 has 2 divisors, whose sum is σ = 545770932. Its totient is φ = 545770930.

The previous prime is 545770919. The next prime is 545770949. The reversal of 545770931 is 139077545.

545770931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545770931 - 2⁶ = 545770867 is a prime.

It is a super-2 number, since 2×545770931² = 595731818249213522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (545770031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272885465 + 272885466.

It is an arithmetic number, because the mean of its divisors is an integer number (272885466).

Almost surely, 2^545770931 is an apocalyptic number.

545770931 is a deficient number, since it is larger than the sum of its proper divisors (1).

545770931 is an equidigital number, since it uses as much as digits as its factorization.

545770931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 545770931 is about 23361.7407527778. The cubic root of 545770931 is about 817.2158855837.

The spelling of 545770931 in words is "five hundred forty-five million, seven hundred seventy thousand, nine hundred thirty-one".