11245642 has 4 divisors (see below), whose sum is σ = 16868466. Its totient is φ = 5622820.

The previous prime is 11245631. The next prime is 11245651. The reversal of 11245642 is 24654211.

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: 24654211 = 223 ⋅110557.

It can be written as a sum of positive squares in only one way, i.e., 11148921 + 96721 = 3339^2 + 311^2 .

It is a super-3 number, since 3×11245642³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2811409 + ... + 2811412.

Almost surely, 2^11245642 is an apocalyptic number.

11245642 is a deficient number, since it is larger than the sum of its proper divisors (5622824).

11245642 is an equidigital number, since it uses as much as digits as its factorization.

11245642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5622823.

The product of its digits is 1920, while the sum is 25.

The square root of 11245642 is about 3353.4522510392. The cubic root of 11245642 is about 224.0413003142.

Adding to 11245642 its reverse (24654211), we get a palindrome (35899853).

It can be divided in two parts, 112 and 45642, that added together give a palindrome (45754).

The spelling of 11245642 in words is "eleven million, two hundred forty-five thousand, six hundred forty-two".