1138273 has 2 divisors, whose sum is σ = 1138274. Its totient is φ = 1138272.

The previous prime is 1138237. The next prime is 1138363. The reversal of 1138273 is 3728311.

Together with previous prime (1138237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 833569 + 304704 = 913^2 + 552^2 .

It is an emirp because it is prime and its reverse (3728311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1138273 - 2¹³ = 1130081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1138213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569136 + 569137.

It is an arithmetic number, because the mean of its divisors is an integer number (569137).

2^1138273 is an apocalyptic number.

It is an amenable number.

1138273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138273 is an equidigital number, since it uses as much as digits as its factorization.

1138273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 25.

The square root of 1138273 is about 1066.8987768294. The cubic root of 1138273 is about 104.4116145581.

The spelling of 1138273 in words is "one million, one hundred thirty-eight thousand, two hundred seventy-three".