1100859 has 4 divisors (see below), whose sum is σ = 1467816. Its totient is φ = 733904.

The previous prime is 1100857. The next prime is 1100887. The reversal of 1100859 is 9580011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1100859 - 2¹ = 1100857 is a prime.

It is a D-number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (1100851) 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, 183474 + ... + 183479.

It is an arithmetic number, because the mean of its divisors is an integer number (366954).

2^1100859 is an apocalyptic number.

1100859 is a deficient number, since it is larger than the sum of its proper divisors (366957).

1100859 is an equidigital number, since it uses as much as digits as its factorization.

1100859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366956.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 1100859 is about 1049.2182804355. The cubic root of 1100859 is about 103.2548751184.

The spelling of 1100859 in words is "one million, one hundred thousand, eight hundred fifty-nine".