545622349 has 2 divisors, whose sum is σ = 545622350. Its totient is φ = 545622348.

The previous prime is 545622323. The next prime is 545622397. The reversal of 545622349 is 943226545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 545549449 + 72900 = 23357^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 545622349 - 2⁵ = 545622317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545602349) 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, 272811174 + 272811175.

It is an arithmetic number, because the mean of its divisors is an integer number (272811175).

Almost surely, 2^545622349 is an apocalyptic number.

It is an amenable number.

545622349 is a deficient number, since it is larger than the sum of its proper divisors (1).

545622349 is an equidigital number, since it uses as much as digits as its factorization.

545622349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 40.

The square root of 545622349 is about 23358.5605078738. The cubic root of 545622349 is about 817.1417185756.

The spelling of 545622349 in words is "five hundred forty-five million, six hundred twenty-two thousand, three hundred forty-nine".