11278099 has 4 divisors (see below), whose sum is σ = 12889264. Its totient is φ = 9666936.

The previous prime is 11278097. The next prime is 11278117. The reversal of 11278099 is 99087211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11278099 - 2¹ = 11278097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11278097) 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 3 ways as a sum of consecutive naturals, for example, 805572 + ... + 805585.

It is an arithmetic number, because the mean of its divisors is an integer number (3222316).

Almost surely, 2^11278099 is an apocalyptic number.

11278099 is a deficient number, since it is larger than the sum of its proper divisors (1611165).

11278099 is an equidigital number, since it uses as much as digits as its factorization.

11278099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611164.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 11278099 is about 3358.2881055681. The cubic root of 11278099 is about 224.2566348070.

The spelling of 11278099 in words is "eleven million, two hundred seventy-eight thousand, ninety-nine".