539538449 has 2 divisors, whose sum is σ = 539538450. Its totient is φ = 539538448.

The previous prime is 539538431. The next prime is 539538487. The reversal of 539538449 is 944835935.

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., 351300049 + 188238400 = 18743^2 + 13720^2 .

It is a cyclic number.

It is not a de Polignac number, because 539538449 - 2¹² = 539534353 is a prime.

It is a super-2 number, since 2×539538449² = 582203475898651202, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 539538397 and 539538406.

It is not a weakly prime, because it can be changed into another prime (539538499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269769224 + 269769225.

It is an arithmetic number, because the mean of its divisors is an integer number (269769225).

Almost surely, 2^539538449 is an apocalyptic number.

It is an amenable number.

539538449 is a deficient number, since it is larger than the sum of its proper divisors (1).

539538449 is an equidigital number, since it uses as much as digits as its factorization.

539538449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 50.

The square root of 539538449 is about 23227.9669579582. The cubic root of 539538449 is about 814.0932110378.

The spelling of 539538449 in words is "five hundred thirty-nine million, five hundred thirty-eight thousand, four hundred forty-nine".