11161442 has 4 divisors (see below), whose sum is σ = 16742166. Its totient is φ = 5580720.

The previous prime is 11161439. The next prime is 11161453. The reversal of 11161442 is 24416111.

11161442 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.

It can be written as a sum of positive squares in only one way, i.e., 5958481 + 5202961 = 2441^2 + 2281^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2790359 + ... + 2790362.

Almost surely, 2^11161442 is an apocalyptic number.

11161442 is a deficient number, since it is larger than the sum of its proper divisors (5580724).

11161442 is an equidigital number, since it uses as much as digits as its factorization.

11161442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5580723.

The product of its digits is 192, while the sum is 20.

The square root of 11161442 is about 3340.8744364313. The cubic root of 11161442 is about 223.4807407828.

Adding to 11161442 its reverse (24416111), we get a palindrome (35577553).

The spelling of 11161442 in words is "eleven million, one hundred sixty-one thousand, four hundred forty-two".