65140323 has 8 divisors (see below), whose sum is σ = 87045648. Its totient is φ = 43330944.

The previous prime is 65140289. The next prime is 65140363. The reversal of 65140323 is 32304156.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65140323 - 2¹⁰ = 65139299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65140293 and 65140302.

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 7 ways as a sum of consecutive naturals, for example, 22386 + ... + 25127.

It is an arithmetic number, because the mean of its divisors is an integer number (10880706).

Almost surely, 2^65140323 is an apocalyptic number.

65140323 is a deficient number, since it is larger than the sum of its proper divisors (21905325).

65140323 is a wasteful number, since it uses less digits than its factorization.

65140323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47973.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 65140323 is about 8070.9555196395. The cubic root of 65140323 is about 402.3617013899.

Adding to 65140323 its reverse (32304156), we get a palindrome (97444479).

The spelling of 65140323 in words is "sixty-five million, one hundred forty thousand, three hundred twenty-three".