65165247 has 36 divisors (see below), whose sum is σ = 110598696. Its totient is φ = 36862560.

The previous prime is 65165227. The next prime is 65165257. The reversal of 65165247 is 74256156.

It is a happy number.

It is not a de Polignac number, because 65165247 - 2⁸ = 65164991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65165227) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 46497 + ... + 47877.

It is an arithmetic number, because the mean of its divisors is an integer number (3072186).

Almost surely, 2^65165247 is an apocalyptic number.

65165247 is a deficient number, since it is larger than the sum of its proper divisors (45433449).

65165247 is a wasteful number, since it uses less digits than its factorization.

65165247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508 (or 1498 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 65165247 is about 8072.4994270672. The cubic root of 65165247 is about 402.4130120775.

Subtracting 65165247 from its reverse (74256156), we obtain a palindrome (9090909).

The spelling of 65165247 in words is "sixty-five million, one hundred sixty-five thousand, two hundred forty-seven".