865452745 has 8 divisors (see below), whose sum is σ = 1099634184. Its totient is φ = 651634944.

The previous prime is 865452727. The next prime is 865452751. The reversal of 865452745 is 547254568.

865452745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 166590649 + 698862096 = 12907^2 + 26436^2 .

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 865452745 - 2¹⁷ = 865321673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 865452695 and 865452704.

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, 5090814 + ... + 5090983.

It is an arithmetic number, because the mean of its divisors is an integer number (137454273).

Almost surely, 2^865452745 is an apocalyptic number.

865452745 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

865452745 is a deficient number, since it is larger than the sum of its proper divisors (234181439).

865452745 is a wasteful number, since it uses less digits than its factorization.

865452745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10181819.

The product of its digits is 1344000, while the sum is 46.

The square root of 865452745 is about 29418.5782287316. The cubic root of 865452745 is about 952.9741491549.

The spelling of 865452745 in words is "eight hundred sixty-five million, four hundred fifty-two thousand, seven hundred forty-five".