65145611 has 2 divisors, whose sum is σ = 65145612. Its totient is φ = 65145610.

The previous prime is 65145607. The next prime is 65145671. The reversal of 65145611 is 11654156.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65145611 - 2² = 65145607 is a prime.

It is not a weakly prime, because it can be changed into another prime (65145671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32572805 + 32572806.

It is an arithmetic number, because the mean of its divisors is an integer number (32572806).

Almost surely, 2^65145611 is an apocalyptic number.

65145611 is a deficient number, since it is larger than the sum of its proper divisors (1).

65145611 is an equidigital number, since it uses as much as digits as its factorization.

65145611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 29.

The square root of 65145611 is about 8071.2831074124. The cubic root of 65145611 is about 402.3725888147.

Adding to 65145611 its reverse (11654156), we get a palindrome (76799767).

It can be divided in two parts, 65145 and 611, that added together give a palindrome (65756).

The spelling of 65145611 in words is "sixty-five million, one hundred forty-five thousand, six hundred eleven".