1131842 has 4 divisors (see below), whose sum is σ = 1697766. Its totient is φ = 565920.

The previous prime is 1131839. The next prime is 1131857. The reversal of 1131842 is 2481311.

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

It can be written as a sum of positive squares in only one way, i.e., 1042441 + 89401 = 1021^2 + 299^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282959 + ... + 282962.

2^1131842 is an apocalyptic number.

1131842 is a deficient number, since it is larger than the sum of its proper divisors (565924).

1131842 is an equidigital number, since it uses as much as digits as its factorization.

1131842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565923.

The product of its digits is 192, while the sum is 20.

The square root of 1131842 is about 1063.8806324020. The cubic root of 1131842 is about 104.2146086161.

The spelling of 1131842 in words is "one million, one hundred thirty-one thousand, eight hundred forty-two".