11155290 has 16 divisors (see below), whose sum is σ = 26772768. Its totient is φ = 2974736.

The previous prime is 11155289. The next prime is 11155297. The reversal of 11155290 is 9255111.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11155290.

It is not an unprimeable number, because it can be changed into a prime (11155297) 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 7 ways as a sum of consecutive naturals, for example, 185892 + ... + 185951.

It is an arithmetic number, because the mean of its divisors is an integer number (1673298).

Almost surely, 2^11155290 is an apocalyptic number.

11155290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11155290 is an abundant number, since it is smaller than the sum of its proper divisors (15617478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11155290 is a wasteful number, since it uses less digits than its factorization.

11155290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371853.

The product of its (nonzero) digits is 450, while the sum is 24.

The square root of 11155290 is about 3339.9535924920. The cubic root of 11155290 is about 223.4396736222.

The spelling of 11155290 in words is "eleven million, one hundred fifty-five thousand, two hundred ninety".