1112542 has 4 divisors (see below), whose sum is σ = 1668816. Its totient is φ = 556270.

The previous prime is 1112519. The next prime is 1112543. The reversal of 1112542 is 2452111.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112543) by changing a digit.

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, 278134 + ... + 278137.

It is an arithmetic number, because the mean of its divisors is an integer number (417204).

2^1112542 is an apocalyptic number.

1112542 is a deficient number, since it is larger than the sum of its proper divisors (556274).

1112542 is an equidigital number, since it uses as much as digits as its factorization.

1112542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556273.

The product of its digits is 80, while the sum is 16.

The square root of 1112542 is about 1054.7710652080. The cubic root of 1112542 is about 103.6188588378.

Adding to 1112542 its reverse (2452111), we get a palindrome (3564653).

The spelling of 1112542 in words is "one million, one hundred twelve thousand, five hundred forty-two".