1101399 has 16 divisors (see below), whose sum is σ = 1634304. Its totient is φ = 655200.

The previous prime is 1101389. The next prime is 1101403. The reversal of 1101399 is 9931011.

It is not a de Polignac number, because 1101399 - 2⁸ = 1101143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101319) 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 15 ways as a sum of consecutive naturals, for example, 754 + ... + 1664.

It is an arithmetic number, because the mean of its divisors is an integer number (102144).

2^1101399 is an apocalyptic number.

1101399 is a deficient number, since it is larger than the sum of its proper divisors (532905).

1101399 is a wasteful number, since it uses less digits than its factorization.

1101399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958.

The product of its (nonzero) digits is 243, while the sum is 24.

The square root of 1101399 is about 1049.4755833272. The cubic root of 1101399 is about 103.2717554268.

The spelling of 1101399 in words is "one million, one hundred one thousand, three hundred ninety-nine".