1118139 has 16 divisors (see below), whose sum is σ = 1680384. Its totient is φ = 655200.

The previous prime is 1118137. The next prime is 1118147. The reversal of 1118139 is 9318111.

It is not a de Polignac number, because 1118139 - 2¹ = 1118137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477 + ... + 1569.

It is an arithmetic number, because the mean of its divisors is an integer number (105024).

2^1118139 is an apocalyptic number.

1118139 is a deficient number, since it is larger than the sum of its proper divisors (562245).

1118139 is a wasteful number, since it uses less digits than its factorization.

1118139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138.

The product of its digits is 216, while the sum is 24.

The square root of 1118139 is about 1057.4209190289. The cubic root of 1118139 is about 103.7923309142.

The spelling of 1118139 in words is "one million, one hundred eighteen thousand, one hundred thirty-nine".