1138743 has 12 divisors (see below), whose sum is σ = 1701960. Its totient is φ = 732816.

The previous prime is 1138741. The next prime is 1138751. The reversal of 1138743 is 3478311.

It is not a de Polignac number, because 1138743 - 2¹ = 1138741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1921 + ... + 2442.

It is an arithmetic number, because the mean of its divisors is an integer number (141830).

2^1138743 is an apocalyptic number.

1138743 is a deficient number, since it is larger than the sum of its proper divisors (563217).

1138743 is a wasteful number, since it uses less digits than its factorization.

1138743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398 (or 4395 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1138743 is about 1067.1190186666. The cubic root of 1138743 is about 104.4259833156.

It can be divided in two parts, 1138 and 743, that added together give a palindrome (1881).

The spelling of 1138743 in words is "one million, one hundred thirty-eight thousand, seven hundred forty-three".