1331042 has 16 divisors (see below), whose sum is σ = 2109240. Its totient is φ = 628992.

The previous prime is 1331041. The next prime is 1331051. The reversal of 1331042 is 2401331.

It can be written as a sum of positive squares in 4 ways, for example, as 1038361 + 292681 = 1019^2 + 541^2 .

It is not an unprimeable number, because it can be changed into a prime (1331041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2858 + ... + 3290.

2^1331042 is an apocalyptic number.

1331042 is a deficient number, since it is larger than the sum of its proper divisors (778198).

1331042 is a wasteful number, since it uses less digits than its factorization.

1331042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1331042 is about 1153.7079353112. The cubic root of 1331042 is about 110.0011570126.

Adding to 1331042 its reverse (2401331), we get a palindrome (3732373).

The spelling of 1331042 in words is "one million, three hundred thirty-one thousand, forty-two".