1142437 has 4 divisors (see below), whose sum is σ = 1144576. Its totient is φ = 1140300.

The previous prime is 1142431. The next prime is 1142473. The reversal of 1142437 is 7342411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7342411 = 89 ⋅82499.

It is a cyclic number.

It is not a de Polignac number, because 1142437 - 2¹¹ = 1140389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508 + ... + 1594.

It is an arithmetic number, because the mean of its divisors is an integer number (286144).

2^1142437 is an apocalyptic number.

It is an amenable number.

1142437 is a deficient number, since it is larger than the sum of its proper divisors (2139).

1142437 is a wasteful number, since it uses less digits than its factorization.

1142437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138.

The product of its digits is 672, while the sum is 22.

The square root of 1142437 is about 1068.8484457583. The cubic root of 1142437 is about 104.5387782183.

Adding to 1142437 its reverse (7342411), we get a palindrome (8484848).

The spelling of 1142437 in words is "one million, one hundred forty-two thousand, four hundred thirty-seven".