11147242 has 4 divisors (see below), whose sum is σ = 16720866. Its totient is φ = 5573620.

The previous prime is 11147239. The next prime is 11147263. The reversal of 11147242 is 24274111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24274111 = 263 ⋅92297.

It can be written as a sum of positive squares in only one way, i.e., 10426441 + 720801 = 3229^2 + 849^2 .

It is a super-2 number, since 2×11147242² = 248522008413128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2786809 + ... + 2786812.

Almost surely, 2^11147242 is an apocalyptic number.

11147242 is a deficient number, since it is larger than the sum of its proper divisors (5573624).

11147242 is an equidigital number, since it uses as much as digits as its factorization.

11147242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5573623.

The product of its digits is 448, while the sum is 22.

The square root of 11147242 is about 3338.7485679518. The cubic root of 11147242 is about 223.3859270704.

The spelling of 11147242 in words is "eleven million, one hundred forty-seven thousand, two hundred forty-two".