1138535 has 4 divisors (see below), whose sum is σ = 1366248. Its totient is φ = 910824.

The previous prime is 1138519. The next prime is 1138547. The reversal of 1138535 is 5358311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1138535 - 2⁴ = 1138519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113849 + ... + 113858.

It is an arithmetic number, because the mean of its divisors is an integer number (341562).

2^1138535 is an apocalyptic number.

1138535 is a deficient number, since it is larger than the sum of its proper divisors (227713).

1138535 is an equidigital number, since it uses as much as digits as its factorization.

1138535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227712.

The product of its digits is 1800, while the sum is 26.

The square root of 1138535 is about 1067.0215555461. The cubic root of 1138535 is about 104.4196248638.

The spelling of 1138535 in words is "one million, one hundred thirty-eight thousand, five hundred thirty-five".