5439273149 has 2 divisors, whose sum is σ = 5439273150. Its totient is φ = 5439273148.

The previous prime is 5439273137. The next prime is 5439273163. The reversal of 5439273149 is 9413729345.

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., 5321702500 + 117570649 = 72950^2 + 10843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5439273149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5439272149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2719636574 + 2719636575.

It is an arithmetic number, because the mean of its divisors is an integer number (2719636575).

Almost surely, 2^5439273149 is an apocalyptic number.

It is an amenable number.

5439273149 is a deficient number, since it is larger than the sum of its proper divisors (1).

5439273149 is an equidigital number, since it uses as much as digits as its factorization.

5439273149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 47.

The square root of 5439273149 is about 73751.4281149864. The cubic root of 5439273149 is about 1758.6535359616.

The spelling of 5439273149 in words is "five billion, four hundred thirty-nine million, two hundred seventy-three thousand, one hundred forty-nine".