65081013 has 8 divisors (see below), whose sum is σ = 86822400. Its totient is φ = 43363488.

The previous prime is 65081011. The next prime is 65081087. The reversal of 65081013 is 31018056.

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

It is not a de Polignac number, because 65081013 - 2¹ = 65081011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65081011) 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, 1873 + ... + 11561.

It is an arithmetic number, because the mean of its divisors is an integer number (10852800).

Almost surely, 2^65081013 is an apocalyptic number.

It is an amenable number.

65081013 is a deficient number, since it is larger than the sum of its proper divisors (21741387).

65081013 is a wasteful number, since it uses less digits than its factorization.

65081013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11931.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 65081013 is about 8067.2803967632. The cubic root of 65081013 is about 402.2395480764.

Adding to 65081013 its reverse (31018056), we get a palindrome (96099069).

The spelling of 65081013 in words is "sixty-five million, eighty-one thousand, thirteen".