1161306196 has 6 divisors (see below), whose sum is σ = 2032285850. Its totient is φ = 580653096.

The previous prime is 1161306191. The next prime is 1161306217. The reversal of 1161306196 is 6916031611.

It can be written as a sum of positive squares in only one way, i.e., 1035552400 + 125753796 = 32180^2 + 11214^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161306191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145163271 + ... + 145163278.

Almost surely, 2^1161306196 is an apocalyptic number.

It is an amenable number.

1161306196 is a deficient number, since it is larger than the sum of its proper divisors (870979654).

1161306196 is a wasteful number, since it uses less digits than its factorization.

1161306196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290326553 (or 290326551 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 1161306196 is about 34077.9429543510. The cubic root of 1161306196 is about 1051.1118067621. Note that the first 3 decimals are identical.

The spelling of 1161306196 in words is "one billion, one hundred sixty-one million, three hundred six thousand, one hundred ninety-six".