1191086106 has 32 divisors (see below), whose sum is σ = 2733802368. Its totient is φ = 338895360.

The previous prime is 1191086093. The next prime is 1191086153. The reversal of 1191086106 is 6016801911.

It is a super-2 number, since 2×1191086106² = 2837372223812486472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48715 + ... + 68958.

It is an arithmetic number, because the mean of its divisors is an integer number (85431324).

Almost surely, 2^1191086106 is an apocalyptic number.

1191086106 is an abundant number, since it is smaller than the sum of its proper divisors (1542716262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1191086106 is a wasteful number, since it uses less digits than its factorization.

1191086106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117926.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 1191086106 is about 34512.1153509894. The cubic root of 1191086106 is about 1060.0207976221.

The spelling of 1191086106 in words is "one billion, one hundred ninety-one million, eighty-six thousand, one hundred six".