11190155 has 8 divisors (see below), whose sum is σ = 13681872. Its totient is φ = 8783008.

The previous prime is 11190149. The next prime is 11190173. The reversal of 11190155 is 55109111.

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

It is a cyclic number.

It is not a de Polignac number, because 11190155 - 2¹⁰ = 11189131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11190155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20849 + ... + 21378.

It is an arithmetic number, because the mean of its divisors is an integer number (1710234).

Almost surely, 2^11190155 is an apocalyptic number.

11190155 is a deficient number, since it is larger than the sum of its proper divisors (2491717).

11190155 is an equidigital number, since it uses as much as digits as its factorization.

11190155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42285.

The product of its (nonzero) digits is 225, while the sum is 23.

The square root of 11190155 is about 3345.1689045547. The cubic root of 11190155 is about 223.6722126947.

Adding to 11190155 its reverse (55109111), we get a palindrome (66299266).

The spelling of 11190155 in words is "eleven million, one hundred ninety thousand, one hundred fifty-five".