11161355 has 4 divisors (see below), whose sum is σ = 13393632. Its totient is φ = 8929080.

The previous prime is 11161327. The next prime is 11161387. The reversal of 11161355 is 55316111.

11161355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55316111 = 107 ⋅516973.

It is not a de Polignac number, because 11161355 - 2⁶ = 11161291 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 11161355.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1116131 + ... + 1116140.

It is an arithmetic number, because the mean of its divisors is an integer number (3348408).

Almost surely, 2^11161355 is an apocalyptic number.

11161355 is a deficient number, since it is larger than the sum of its proper divisors (2232277).

11161355 is an equidigital number, since it uses as much as digits as its factorization.

11161355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232276.

The product of its digits is 450, while the sum is 23.

The square root of 11161355 is about 3340.8614158627. The cubic root of 11161355 is about 223.4801601268.

Adding to 11161355 its reverse (55316111), we get a palindrome (66477466).

The spelling of 11161355 in words is "eleven million, one hundred sixty-one thousand, three hundred fifty-five".