1085276861 has 4 divisors (see below), whose sum is σ = 1120285824. Its totient is φ = 1050267900.

The previous prime is 1085276851. The next prime is 1085276867. The reversal of 1085276861 is 1686725801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1085276861 - 2³⁰ = 11535037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085276867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17504435 + ... + 17504496.

It is an arithmetic number, because the mean of its divisors is an integer number (280071456).

Almost surely, 2^1085276861 is an apocalyptic number.

It is an amenable number.

1085276861 is a deficient number, since it is larger than the sum of its proper divisors (35008963).

1085276861 is an equidigital number, since it uses as much as digits as its factorization.

1085276861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35008962.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 1085276861 is about 32943.5405049306. The cubic root of 1085276861 is about 1027.6538363841.

The spelling of 1085276861 in words is "one billion, eighty-five million, two hundred seventy-six thousand, eight hundred sixty-one".