1138799 has 8 divisors (see below), whose sum is σ = 1207680. Its totient is φ = 1071576.

The previous prime is 1138793. The next prime is 1138829. The reversal of 1138799 is 9978311.

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

It is a cyclic number.

It is not a de Polignac number, because 1138799 - 2¹² = 1134703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172 + ... + 1910.

It is an arithmetic number, because the mean of its divisors is an integer number (150960).

2^1138799 is an apocalyptic number.

1138799 is a deficient number, since it is larger than the sum of its proper divisors (68881).

1138799 is an equidigital number, since it uses as much as digits as its factorization.

1138799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829.

The product of its digits is 13608, while the sum is 38.

The square root of 1138799 is about 1067.1452572167. The cubic root of 1138799 is about 104.4276950741.

The spelling of 1138799 in words is "one million, one hundred thirty-eight thousand, seven hundred ninety-nine".