65140365 has 16 divisors (see below), whose sum is σ = 104328000. Its totient is φ = 34707072.

The previous prime is 65140363. The next prime is 65140367. The reversal of 65140365 is 56304156.

It is an interprime number because it is at equal distance from previous prime (65140363) and next prime (65140367).

It is not a de Polignac number, because 65140365 - 2¹ = 65140363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65140363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22786 + ... + 25484.

It is an arithmetic number, because the mean of its divisors is an integer number (6520500).

Almost surely, 2^65140365 is an apocalyptic number.

It is an amenable number.

65140365 is a deficient number, since it is larger than the sum of its proper divisors (39187635).

65140365 is a wasteful number, since it uses less digits than its factorization.

65140365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4316.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 65140365 is about 8070.9581215615. The cubic root of 65140365 is about 402.3617878657.

The spelling of 65140365 in words is "sixty-five million, one hundred forty thousand, three hundred sixty-five".