65135155 has 4 divisors (see below), whose sum is σ = 78162192. Its totient is φ = 52108120.

The previous prime is 65135141. The next prime is 65135171. The reversal of 65135155 is 55153156.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 65135155 - 2¹⁹ = 64610867 is a prime.

It is a Duffinian number.

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, 6513511 + ... + 6513520.

It is an arithmetic number, because the mean of its divisors is an integer number (19540548).

Almost surely, 2^65135155 is an apocalyptic number.

65135155 is a deficient number, since it is larger than the sum of its proper divisors (13027037).

65135155 is a wasteful number, since it uses less digits than its factorization.

65135155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13027036.

The product of its digits is 11250, while the sum is 31.

The square root of 65135155 is about 8070.6353529323. The cubic root of 65135155 is about 402.3510604629.

The spelling of 65135155 in words is "sixty-five million, one hundred thirty-five thousand, one hundred fifty-five".