545606731 has 2 divisors, whose sum is σ = 545606732. Its totient is φ = 545606730.

The previous prime is 545606701. The next prime is 545606749. The reversal of 545606731 is 137606545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545606731 - 2¹³ = 545598539 is a prime.

It is a super-2 number, since 2×545606731² = 595373409825012722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (545606701) 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 as a sum of consecutive naturals, namely, 272803365 + 272803366.

It is an arithmetic number, because the mean of its divisors is an integer number (272803366).

Almost surely, 2^545606731 is an apocalyptic number.

545606731 is a deficient number, since it is larger than the sum of its proper divisors (1).

545606731 is an equidigital number, since it uses as much as digits as its factorization.

545606731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 545606731 is about 23358.2261954970. The cubic root of 545606731 is about 817.1339218268.

The spelling of 545606731 in words is "five hundred forty-five million, six hundred six thousand, seven hundred thirty-one".