1138285 has 8 divisors (see below), whose sum is σ = 1372896. Its totient is φ = 906000.

The previous prime is 1138273. The next prime is 1138363. The reversal of 1138285 is 5828311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1138285 - 2¹¹ = 1136237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802 + ... + 1708.

It is an arithmetic number, because the mean of its divisors is an integer number (171612).

2^1138285 is an apocalyptic number.

It is an amenable number.

1138285 is a deficient number, since it is larger than the sum of its proper divisors (234611).

1138285 is an equidigital number, since it uses as much as digits as its factorization.

1138285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163.

The product of its digits is 1920, while the sum is 28.

The square root of 1138285 is about 1066.9044005908. The cubic root of 1138285 is about 104.4119814691.

The spelling of 1138285 in words is "one million, one hundred thirty-eight thousand, two hundred eighty-five".