65164138 has 8 divisors (see below), whose sum is σ = 105265188. Its totient is φ = 30075744.

The previous prime is 65164103. The next prime is 65164157. The reversal of 65164138 is 83146156.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51451929 + 13712209 = 7173^2 + 3703^2 .

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

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, 1253131 + ... + 1253182.

Almost surely, 2^65164138 is an apocalyptic number.

65164138 is a deficient number, since it is larger than the sum of its proper divisors (40101050).

65164138 is a wasteful number, since it uses less digits than its factorization.

65164138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506328.

The product of its digits is 17280, while the sum is 34.

The square root of 65164138 is about 8072.4307367732. The cubic root of 65164138 is about 402.4107292729.

The spelling of 65164138 in words is "sixty-five million, one hundred sixty-four thousand, one hundred thirty-eight".