1080854165 has 4 divisors (see below), whose sum is σ = 1297025004. Its totient is φ = 864683328.

The previous prime is 1080854113. The next prime is 1080854171. The reversal of 1080854165 is 5614580801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5614580801 = 191 ⋅29395711.

It can be written as a sum of positive squares in 2 ways, for example, as 202265284 + 878588881 = 14222^2 + 29641^2 .

It is a cyclic number.

It is not a de Polignac number, because 1080854165 - 2⁸ = 1080853909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108085412 + ... + 108085421.

It is an arithmetic number, because the mean of its divisors is an integer number (324256251).

Almost surely, 2^1080854165 is an apocalyptic number.

It is an amenable number.

1080854165 is a deficient number, since it is larger than the sum of its proper divisors (216170839).

1080854165 is an equidigital number, since it uses as much as digits as its factorization.

1080854165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216170838.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 1080854165 is about 32876.3465883909. The cubic root of 1080854165 is about 1026.2559785085.

The spelling of 1080854165 in words is "one billion, eighty million, eight hundred fifty-four thousand, one hundred sixty-five".