11142544 has 20 divisors (see below), whose sum is σ = 24673024. Its totient is φ = 4775328.

The previous prime is 11142539. The next prime is 11142553. The reversal of 11142544 is 44524111.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49632 + ... + 49855.

Almost surely, 2^11142544 is an apocalyptic number.

11142544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11142544 is an abundant number, since it is smaller than the sum of its proper divisors (13530480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11142544 is an equidigital number, since it uses as much as digits as its factorization.

11142544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99502 (or 99496 counting only the distinct ones).

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

The square root of 11142544 is about 3338.0449367856. The cubic root of 11142544 is about 223.3545406955.

Adding to 11142544 its reverse (44524111), we get a palindrome (55666655).

The spelling of 11142544 in words is "eleven million, one hundred forty-two thousand, five hundred forty-four".