1091409933 has 16 divisors (see below), whose sum is σ = 1486800896. Its totient is φ = 711970560.

The previous prime is 1091409931. The next prime is 1091409947. The reversal of 1091409933 is 3399041901.

It is not a de Polignac number, because 1091409933 - 2¹ = 1091409931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1091409891 and 1091409900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091409931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8193 + ... + 47433.

It is an arithmetic number, because the mean of its divisors is an integer number (92925056).

Almost surely, 2^1091409933 is an apocalyptic number.

It is an amenable number.

1091409933 is a deficient number, since it is larger than the sum of its proper divisors (395390963).

1091409933 is a wasteful number, since it uses less digits than its factorization.

1091409933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39444.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 1091409933 is about 33036.4939574405. The cubic root of 1091409933 is about 1029.5860129734.

The spelling of 1091409933 in words is "one billion, ninety-one million, four hundred nine thousand, nine hundred thirty-three".