1101889 has 4 divisors (see below), whose sum is σ = 1166724. Its totient is φ = 1037056.

The previous prime is 1101883. The next prime is 1101901. The reversal of 1101889 is 9881011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9881011 = 7 ⋅1411573.

It can be written as a sum of positive squares in 2 ways, for example, as 600625 + 501264 = 775^2 + 708^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101889 - 2⁷ = 1101761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32392 + ... + 32425.

It is an arithmetic number, because the mean of its divisors is an integer number (291681).

2^1101889 is an apocalyptic number.

It is an amenable number.

1101889 is a deficient number, since it is larger than the sum of its proper divisors (64835).

1101889 is an equidigital number, since it uses as much as digits as its factorization.

1101889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64834.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 1101889 is about 1049.7090072968. The cubic root of 1101889 is about 103.2870679695.

The spelling of 1101889 in words is "one million, one hundred one thousand, eight hundred eighty-nine".