11219155 has 8 divisors (see below), whose sum is σ = 13482000. Its totient is φ = 8962656.

The previous prime is 11219141. The next prime is 11219171. The reversal of 11219155 is 55191211.

It is a happy number.

11219155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11219155 - 2⁵ = 11219123 is a prime.

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, 4296 + ... + 6394.

It is an arithmetic number, because the mean of its divisors is an integer number (1685250).

Almost surely, 2^11219155 is an apocalyptic number.

11219155 is a deficient number, since it is larger than the sum of its proper divisors (2262845).

11219155 is a wasteful number, since it uses less digits than its factorization.

11219155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173.

The product of its digits is 450, while the sum is 25.

The square root of 11219155 is about 3349.5007090610. The cubic root of 11219155 is about 223.8652662861.

It can be divided in two parts, 1121915 and 5, that multiplied together give a triangular number (5609575 = T₃₃₄₉).

The spelling of 11219155 in words is "eleven million, two hundred nineteen thousand, one hundred fifty-five".