1096078861 has 4 divisors (see below), whose sum is σ = 1125702652. Its totient is φ = 1066455072.

The previous prime is 1096078853. The next prime is 1096078889. The reversal of 1096078861 is 1688706901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1688706901 = 7 ⋅241243843.

It can be written as a sum of positive squares in 2 ways, for example, as 902702025 + 193376836 = 30045^2 + 13906^2 .

It is a cyclic number.

It is not a de Polignac number, because 1096078861 - 2³ = 1096078853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1096078891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14811840 + ... + 14811913.

It is an arithmetic number, because the mean of its divisors is an integer number (281425663).

Almost surely, 2^1096078861 is an apocalyptic number.

It is an amenable number.

1096078861 is a deficient number, since it is larger than the sum of its proper divisors (29623791).

1096078861 is an equidigital number, since it uses as much as digits as its factorization.

1096078861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29623790.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 1096078861 is about 33107.0817348796. The cubic root of 1096078861 is about 1031.0520751662.

The spelling of 1096078861 in words is "one billion, ninety-six million, seventy-eight thousand, eight hundred sixty-one".