11802091 has 6 divisors (see below), whose sum is σ = 13729020. Its totient is φ = 10116036.

The previous prime is 11802083. The next prime is 11802107. The reversal of 11802091 is 19020811.

It is not a de Polignac number, because 11802091 - 2³ = 11802083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11802191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120381 + ... + 120478.

It is an arithmetic number, because the mean of its divisors is an integer number (2288170).

Almost surely, 2^11802091 is an apocalyptic number.

11802091 is a deficient number, since it is larger than the sum of its proper divisors (1926929).

11802091 is an equidigital number, since it uses as much as digits as its factorization.

11802091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240873 (or 240866 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 11802091 is about 3435.4171507984. The cubic root of 11802091 is about 227.6772583017.

The spelling of 11802091 in words is "eleven million, eight hundred two thousand, ninety-one".