1138241 has 4 divisors (see below), whose sum is σ = 1225812. Its totient is φ = 1050672.

The previous prime is 1138237. The next prime is 1138273. The reversal of 1138241 is 1428311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1428311 = 37 ⋅38603.

It can be written as a sum of positive squares in 2 ways, for example, as 87616 + 1050625 = 296^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 1138241 - 2² = 1138237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1138141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43766 + ... + 43791.

It is an arithmetic number, because the mean of its divisors is an integer number (306453).

2^1138241 is an apocalyptic number.

It is an amenable number.

1138241 is a deficient number, since it is larger than the sum of its proper divisors (87571).

1138241 is an equidigital number, since it uses as much as digits as its factorization.

1138241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87570.

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

The square root of 1138241 is about 1066.8837799873. The cubic root of 1138241 is about 104.4106361159.

The spelling of 1138241 in words is "one million, one hundred thirty-eight thousand, two hundred forty-one".