65434549 has 2 divisors, whose sum is σ = 65434550. Its totient is φ = 65434548.

The previous prime is 65434543. The next prime is 65434597. The reversal of 65434549 is 94543456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64112049 + 1322500 = 8007^2 + 1150^2 .

It is a cyclic number.

It is not a de Polignac number, because 65434549 - 2³ = 65434541 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65434541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32717274 + 32717275.

It is an arithmetic number, because the mean of its divisors is an integer number (32717275).

Almost surely, 2^65434549 is an apocalyptic number.

It is an amenable number.

65434549 is a deficient number, since it is larger than the sum of its proper divisors (1).

65434549 is an equidigital number, since it uses as much as digits as its factorization.

65434549 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 65434549 is about 8089.1624411925. The cubic root of 65434549 is about 402.9665877514.

The spelling of 65434549 in words is "sixty-five million, four hundred thirty-four thousand, five hundred forty-nine".