11200091 has 8 divisors (see below), whose sum is σ = 12862464. Its totient is φ = 9553320.

The previous prime is 11200087. The next prime is 11200097. The reversal of 11200091 is 19000211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11200091 - 2² = 11200087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11200097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2315 + ... + 5268.

It is an arithmetic number, because the mean of its divisors is an integer number (1607808).

Almost surely, 2^11200091 is an apocalyptic number.

11200091 is a deficient number, since it is larger than the sum of its proper divisors (1662373).

11200091 is an equidigital number, since it uses as much as digits as its factorization.

11200091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 11200091 is about 3346.6537018341. The cubic root of 11200091 is about 223.7383943711.

The spelling of 11200091 in words is "eleven million, two hundred thousand, ninety-one".