1096689161 has 8 divisors (see below), whose sum is σ = 1102028424. Its totient is φ = 1091358720.

The previous prime is 1096689137. The next prime is 1096689173. The reversal of 1096689161 is 1619866901.

It can be written as a sum of positive squares in 4 ways, for example, as 61136761 + 1035552400 = 7819^2 + 32180^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1096689161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1096689131) 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, 477131 + ... + 479423.

It is an arithmetic number, because the mean of its divisors is an integer number (137753553).

Almost surely, 2^1096689161 is an apocalyptic number.

It is an amenable number.

1096689161 is a deficient number, since it is larger than the sum of its proper divisors (5339263).

1096689161 is a wasteful number, since it uses less digits than its factorization.

1096689161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4411.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 1096689161 is about 33116.2975134600. The cubic root of 1096689161 is about 1031.2434039566.

The spelling of 1096689161 in words is "one billion, ninety-six million, six hundred eighty-nine thousand, one hundred sixty-one".