65135791 has 8 divisors (see below), whose sum is σ = 75209120. Its totient is φ = 55254528.

The previous prime is 65135767. The next prime is 65135801. The reversal of 65135791 is 19753156.

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

It is not a de Polignac number, because 65135791 - 2¹¹ = 65133743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65135791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65135731) 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, 47286 + ... + 48643.

It is an arithmetic number, because the mean of its divisors is an integer number (9401140).

Almost surely, 2^65135791 is an apocalyptic number.

65135791 is a deficient number, since it is larger than the sum of its proper divisors (10073329).

65135791 is an equidigital number, since it uses as much as digits as its factorization.

65135791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96033.

The product of its digits is 28350, while the sum is 37.

The square root of 65135791 is about 8070.6747549384. The cubic root of 65135791 is about 402.3523700191.

The spelling of 65135791 in words is "sixty-five million, one hundred thirty-five thousand, seven hundred ninety-one".