865145113 has 8 divisors (see below), whose sum is σ = 1046898432. Its totient is φ = 697932096.

The previous prime is 865145111. The next prime is 865145131. The reversal of 865145113 is 311541568.

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

It is a cyclic number.

It is not a de Polignac number, because 865145113 - 2¹ = 865145111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (865145111) 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, 3634945 + ... + 3635182.

It is an arithmetic number, because the mean of its divisors is an integer number (130862304).

Almost surely, 2^865145113 is an apocalyptic number.

It is an amenable number.

865145113 is a deficient number, since it is larger than the sum of its proper divisors (181753319).

865145113 is a wasteful number, since it uses less digits than its factorization.

865145113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7270151.

The product of its digits is 14400, while the sum is 34.

The square root of 865145113 is about 29413.3492312589. The cubic root of 865145113 is about 952.8612217159.

The spelling of 865145113 in words is "eight hundred sixty-five million, one hundred forty-five thousand, one hundred thirteen".