1115859 has 8 divisors (see below), whose sum is σ = 1492992. Its totient is φ = 741320.

The previous prime is 1115857. The next prime is 1115879. The reversal of 1115859 is 9585111.

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

It is not a de Polignac number, because 1115859 - 2¹ = 1115857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115857) 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, 862 + ... + 1724.

It is an arithmetic number, because the mean of its divisors is an integer number (186624).

2^1115859 is an apocalyptic number.

1115859 is a deficient number, since it is larger than the sum of its proper divisors (377133).

1115859 is an equidigital number, since it uses as much as digits as its factorization.

1115859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297.

The product of its digits is 1800, while the sum is 30.

The square root of 1115859 is about 1056.3422740760. The cubic root of 1115859 is about 103.7217351756.

The spelling of 1115859 in words is "one million, one hundred fifteen thousand, eight hundred fifty-nine".