1138927 has 4 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 1128736.

The previous prime is 1138919. The next prime is 1138957. The reversal of 1138927 is 7298311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7298311 = 307 ⋅23773.

It is a cyclic number.

It is not a de Polignac number, because 1138927 - 2³ = 1138919 is a prime.

It is a super-2 number, since 2×1138927² = 2594309422658, which contains 22 as substring.

It is a Duffinian number.

1138927 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138957) 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, 4927 + ... + 5152.

It is an arithmetic number, because the mean of its divisors is an integer number (287280).

2^1138927 is an apocalyptic number.

1138927 is a deficient number, since it is larger than the sum of its proper divisors (10193).

1138927 is a wasteful number, since it uses less digits than its factorization.

1138927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10192.

The product of its digits is 3024, while the sum is 31.

The square root of 1138927 is about 1067.2052286229. The cubic root of 1138927 is about 104.4316074544.

The spelling of 1138927 in words is "one million, one hundred thirty-eight thousand, nine hundred twenty-seven".