1161271796 has 12 divisors (see below), whose sum is σ = 2033163552. Its totient is φ = 580367928.

The previous prime is 1161271789. The next prime is 1161271801. The reversal of 1161271796 is 6971721611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57080 + ... + 74703.

It is an arithmetic number, because the mean of its divisors is an integer number (169430296).

Almost surely, 2^1161271796 is an apocalyptic number.

It is an amenable number.

1161271796 is a deficient number, since it is larger than the sum of its proper divisors (871891756).

1161271796 is a wasteful number, since it uses less digits than its factorization.

1161271796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133990 (or 133988 counting only the distinct ones).

The product of its digits is 31752, while the sum is 41.

The square root of 1161271796 is about 34077.4382253127. The cubic root of 1161271796 is about 1051.1014280457.

The spelling of 1161271796 in words is "one billion, one hundred sixty-one million, two hundred seventy-one thousand, seven hundred ninety-six".