4543402009 has 2 divisors, whose sum is σ = 4543402010. Its totient is φ = 4543402008.

The previous prime is 4543401979. The next prime is 4543402043. The reversal of 4543402009 is 9002043454.

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., 4336617609 + 206784400 = 65853^2 + 14380^2 .

It is a cyclic number.

It is not a de Polignac number, because 4543402009 - 2²³ = 4535013401 is a prime.

It is not a weakly prime, because it can be changed into another prime (4543409009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2271701004 + 2271701005.

It is an arithmetic number, because the mean of its divisors is an integer number (2271701005).

Almost surely, 2^4543402009 is an apocalyptic number.

It is an amenable number.

4543402009 is a deficient number, since it is larger than the sum of its proper divisors (1).

4543402009 is an equidigital number, since it uses as much as digits as its factorization.

4543402009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 4543402009 is about 67404.7625097812. The cubic root of 4543402009 is about 1656.2544389600.

The spelling of 4543402009 in words is "four billion, five hundred forty-three million, four hundred two thousand, nine".