65152909 has 2 divisors, whose sum is σ = 65152910. Its totient is φ = 65152908.

The previous prime is 65152907. The next prime is 65152931. The reversal of 65152909 is 90925156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48260809 + 16892100 = 6947^2 + 4110^2 .

It is a cyclic number.

It is not a de Polignac number, because 65152909 - 2¹ = 65152907 is a prime.

Together with 65152907, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65152903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32576454 + 32576455.

It is an arithmetic number, because the mean of its divisors is an integer number (32576455).

Almost surely, 2^65152909 is an apocalyptic number.

It is an amenable number.

65152909 is a deficient number, since it is larger than the sum of its proper divisors (1).

65152909 is an equidigital number, since it uses as much as digits as its factorization.

65152909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 65152909 is about 8071.7351913947. The cubic root of 65152909 is about 402.3876136463.

The spelling of 65152909 in words is "sixty-five million, one hundred fifty-two thousand, nine hundred nine".