65132609 has 2 divisors, whose sum is σ = 65132610. Its totient is φ = 65132608.

The previous prime is 65132563. The next prime is 65132611. The reversal of 65132609 is 90623156.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33097009 + 32035600 = 5753^2 + 5660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65132609 is a prime.

Together with 65132611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65132629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32566304 + 32566305.

It is an arithmetic number, because the mean of its divisors is an integer number (32566305).

Almost surely, 2^65132609 is an apocalyptic number.

It is an amenable number.

65132609 is a deficient number, since it is larger than the sum of its proper divisors (1).

65132609 is an equidigital number, since it uses as much as digits as its factorization.

65132609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 65132609 is about 8070.4776190756. The cubic root of 65132609 is about 402.3458180346.

The spelling of 65132609 in words is "sixty-five million, one hundred thirty-two thousand, six hundred nine".