11145242 has 4 divisors (see below), whose sum is σ = 16717866. Its totient is φ = 5572620.

The previous prime is 11145223. The next prime is 11145247. The reversal of 11145242 is 24254111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24254111 = 7 ⋅3464873.

It can be written as a sum of positive squares in only one way, i.e., 11082241 + 63001 = 3329^2 + 251^2 .

It is not an unprimeable number, because it can be changed into a prime (11145247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2786309 + ... + 2786312.

Almost surely, 2^11145242 is an apocalyptic number.

11145242 is a deficient number, since it is larger than the sum of its proper divisors (5572624).

11145242 is an equidigital number, since it uses as much as digits as its factorization.

11145242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572623.

The product of its digits is 320, while the sum is 20.

The square root of 11145242 is about 3338.4490410968. The cubic root of 11145242 is about 223.3725665586.

Adding to 11145242 its reverse (24254111), we get a palindrome (35399353).

The spelling of 11145242 in words is "eleven million, one hundred forty-five thousand, two hundred forty-two".