1138511 has 16 divisors (see below), whose sum is σ = 1330560. Its totient is φ = 964320.

The previous prime is 1138483. The next prime is 1138519. The reversal of 1138511 is 1158311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1138511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138519) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13676 + ... + 13758.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

2^1138511 is an apocalyptic number.

1138511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1138511 is a deficient number, since it is larger than the sum of its proper divisors (192049).

1138511 is a wasteful number, since it uses less digits than its factorization.

1138511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166.

The product of its digits is 120, while the sum is 20.

The square root of 1138511 is about 1067.0103092285. The cubic root of 1138511 is about 104.4188911465.

The spelling of 1138511 in words is "one million, one hundred thirty-eight thousand, five hundred eleven".