864159745 has 8 divisors (see below), whose sum is σ = 1037217600. Its totient is φ = 691177200.

The previous prime is 864159743. The next prime is 864159757. The reversal of 864159745 is 547951468.

It is a happy number.

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

It is not a de Polignac number, because 864159745 - 2¹ = 864159743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (864159743) 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, 10606 + ... + 42904.

It is an arithmetic number, because the mean of its divisors is an integer number (129652200).

Almost surely, 2^864159745 is an apocalyptic number.

It is an amenable number.

864159745 is a deficient number, since it is larger than the sum of its proper divisors (173057855).

864159745 is a wasteful number, since it uses less digits than its factorization.

864159745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37655.

The product of its digits is 1209600, while the sum is 49.

The square root of 864159745 is about 29396.5941054402. The cubic root of 864159745 is about 952.4993264945.

It can be divided in two parts, 8641 and 59745, that added together give a palindrome (68386).

The spelling of 864159745 in words is "eight hundred sixty-four million, one hundred fifty-nine thousand, seven hundred forty-five".