65318138 has 8 divisors (see below), whose sum is σ = 98032788. Its totient is φ = 32640544.

The previous prime is 65318119. The next prime is 65318177. The reversal of 65318138 is 83181356.

It can be written as a sum of positive squares in 2 ways, for example, as 64048009 + 1270129 = 8003^2 + 1127^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 65318098 and 65318107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4331 + ... + 12222.

Almost surely, 2^65318138 is an apocalyptic number.

65318138 is a deficient number, since it is larger than the sum of its proper divisors (32714650).

65318138 is a wasteful number, since it uses less digits than its factorization.

65318138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18528.

The product of its digits is 17280, while the sum is 35.

The square root of 65318138 is about 8081.9637465161. The cubic root of 65318138 is about 402.7274806850.

It can be divided in two parts, 65318 and 138, that added together give a palindrome (65456).

The spelling of 65318138 in words is "sixty-five million, three hundred eighteen thousand, one hundred thirty-eight".