1150855 has 8 divisors (see below), whose sum is σ = 1387152. Its totient is φ = 916608.

The previous prime is 1150847. The next prime is 1150861. The reversal of 1150855 is 5580511.

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

It is a cyclic number.

It is not a de Polignac number, because 1150855 - 2³ = 1150847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1344 + ... + 2026.

It is an arithmetic number, because the mean of its divisors is an integer number (173394).

2^1150855 is an apocalyptic number.

1150855 is a deficient number, since it is larger than the sum of its proper divisors (236297).

1150855 is an equidigital number, since it uses as much as digits as its factorization.

1150855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025.

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 1150855 is about 1072.7791012133. The cubic root of 1150855 is about 104.7949133654.

The spelling of 1150855 in words is "one million, one hundred fifty thousand, eight hundred fifty-five".