545184649 has 2 divisors, whose sum is σ = 545184650. Its totient is φ = 545184648.

The previous prime is 545184643. The next prime is 545184683. The reversal of 545184649 is 946481545.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280797049 + 264387600 = 16757^2 + 16260^2 .

It is a cyclic number.

It is not a de Polignac number, because 545184649 - 2³ = 545184641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545184599 and 545184608.

It is not a weakly prime, because it can be changed into another prime (545184641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272592324 + 272592325.

It is an arithmetic number, because the mean of its divisors is an integer number (272592325).

Almost surely, 2^545184649 is an apocalyptic number.

It is an amenable number.

545184649 is a deficient number, since it is larger than the sum of its proper divisors (1).

545184649 is an equidigital number, since it uses as much as digits as its factorization.

545184649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 46.

The square root of 545184649 is about 23349.1894720138. The cubic root of 545184649 is about 816.9231555512.

It can be divided in two parts, 5451 and 84649, that added together give a triangular number (90100 = T₄₂₄).

The spelling of 545184649 in words is "five hundred forty-five million, one hundred eighty-four thousand, six hundred forty-nine".