1091936067 has 16 divisors (see below), whose sum is σ = 1492979712. Its totient is φ = 709462080.

The previous prime is 1091936047. The next prime is 1091936089. The reversal of 1091936067 is 7606391901.

It is not a de Polignac number, because 1091936067 - 2¹⁶ = 1091870531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1091936047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129618 + ... + 137784.

It is an arithmetic number, because the mean of its divisors is an integer number (93311232).

Almost surely, 2^1091936067 is an apocalyptic number.

1091936067 is a deficient number, since it is larger than the sum of its proper divisors (401043645).

1091936067 is a wasteful number, since it uses less digits than its factorization.

1091936067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9298.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 1091936067 is about 33044.4559192613. The cubic root of 1091936067 is about 1029.7514299473.

The spelling of 1091936067 in words is "one billion, ninety-one million, nine hundred thirty-six thousand, sixty-seven".