65135161 has 12 divisors (see below), whose sum is σ = 81598692. Its totient is φ = 51535008.

The previous prime is 65135141. The next prime is 65135171. The reversal of 65135161 is 16153156.

It can be written as a sum of positive squares in 2 ways, for example, as 36832761 + 28302400 = 6069^2 + 5320^2 .

It is not a de Polignac number, because 65135161 - 2²³ = 56746553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65135141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50490 + ... + 51763.

It is an arithmetic number, because the mean of its divisors is an integer number (6799891).

Almost surely, 2^65135161 is an apocalyptic number.

It is an amenable number.

65135161 is a deficient number, since it is larger than the sum of its proper divisors (16463531).

65135161 is a wasteful number, since it uses less digits than its factorization.

65135161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102280 (or 102273 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

The square root of 65135161 is about 8070.6357246502. The cubic root of 65135161 is about 402.3510728172.

The spelling of 65135161 in words is "sixty-five million, one hundred thirty-five thousand, one hundred sixty-one".