1131442 has 8 divisors (see below), whose sum is σ = 1827756. Its totient is φ = 522192.

The previous prime is 1131437. The next prime is 1131451. The reversal of 1131442 is 2441311.

It can be written as a sum of positive squares in 2 ways, for example, as 793881 + 337561 = 891^2 + 581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

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, 21733 + ... + 21784.

2^1131442 is an apocalyptic number.

1131442 is a deficient number, since it is larger than the sum of its proper divisors (696314).

1131442 is a wasteful number, since it uses less digits than its factorization.

1131442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43532.

The product of its digits is 96, while the sum is 16.

The square root of 1131442 is about 1063.6926247747. The cubic root of 1131442 is about 104.2023304727.

Adding to 1131442 its reverse (2441311), we get a palindrome (3572753).

The spelling of 1131442 in words is "one million, one hundred thirty-one thousand, four hundred forty-two".