1115854 has 4 divisors (see below), whose sum is σ = 1673784. Its totient is φ = 557926.

The previous prime is 1115843. The next prime is 1115857. The reversal of 1115854 is 4585111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4585111 = 421 ⋅10891.

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 as a sum of consecutive naturals, namely, 278962 + ... + 278965.

It is an arithmetic number, because the mean of its divisors is an integer number (418446).

2^1115854 is an apocalyptic number.

1115854 is a deficient number, since it is larger than the sum of its proper divisors (557930).

1115854 is an equidigital number, since it uses as much as digits as its factorization.

1115854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557929.

The product of its digits is 800, while the sum is 25.

The square root of 1115854 is about 1056.3399074162. The cubic root of 1115854 is about 103.7215802547.

The spelling of 1115854 in words is "one million, one hundred fifteen thousand, eight hundred fifty-four".