11142445 has 16 divisors (see below), whose sum is σ = 13763520. Its totient is φ = 8656384.

The previous prime is 11142427. The next prime is 11142449. The reversal of 11142445 is 54424111.

It is a cyclic number.

It is not a de Polignac number, because 11142445 - 2⁵ = 11142413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31389 + ... + 31741.

It is an arithmetic number, because the mean of its divisors is an integer number (860220).

Almost surely, 2^11142445 is an apocalyptic number.

It is an amenable number.

11142445 is a deficient number, since it is larger than the sum of its proper divisors (2621075).

11142445 is a wasteful number, since it uses less digits than its factorization.

11142445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524.

The product of its digits is 640, while the sum is 22.

The square root of 11142445 is about 3338.0301077132. The cubic root of 11142445 is about 223.3538792018.

Adding to 11142445 its reverse (54424111), we get a palindrome (65566556).

The spelling of 11142445 in words is "eleven million, one hundred forty-two thousand, four hundred forty-five".