1115142 has 24 divisors (see below), whose sum is σ = 2595096. Its totient is φ = 318528.

The previous prime is 1115131. The next prime is 1115189. The reversal of 1115142 is 2415111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1603 + ... + 2190.

It is an arithmetic number, because the mean of its divisors is an integer number (108129).

2^1115142 is an apocalyptic number.

1115142 is an abundant number, since it is smaller than the sum of its proper divisors (1479954).

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

1115142 is a wasteful number, since it uses less digits than its factorization.

1115142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812 (or 3805 counting only the distinct ones).

The product of its digits is 40, while the sum is 15.

The square root of 1115142 is about 1056.0028409053. The cubic root of 1115142 is about 103.6995147999.

It can be divided in two parts, 111 and 5142, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 1115142 in words is "one million, one hundred fifteen thousand, one hundred forty-two".