65135645 has 8 divisors (see below), whose sum is σ = 78351840. Its totient is φ = 51982480.

The previous prime is 65135639. The next prime is 65135657. The reversal of 65135645 is 54653156.

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

It is not a de Polignac number, because 65135645 - 2¹⁴ = 65119261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13451 + ... + 17640.

It is an arithmetic number, because the mean of its divisors is an integer number (9793980).

Almost surely, 2^65135645 is an apocalyptic number.

It is an amenable number.

65135645 is a deficient number, since it is larger than the sum of its proper divisors (13216195).

65135645 is a wasteful number, since it uses less digits than its factorization.

65135645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31515.

The product of its digits is 54000, while the sum is 35.

The square root of 65135645 is about 8070.6657098408. The cubic root of 65135645 is about 402.3520693985.

The spelling of 65135645 in words is "sixty-five million, one hundred thirty-five thousand, six hundred forty-five".