1170555 has 16 divisors (see below), whose sum is σ = 1900320. Its totient is φ = 615168.

The previous prime is 1170553. The next prime is 1170563. The reversal of 1170555 is 5550711.

It is not a de Polignac number, because 1170555 - 2¹ = 1170553 is a prime.

1170555 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1170553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561 + ... + 1629.

It is an arithmetic number, because the mean of its divisors is an integer number (118770).

2^1170555 is an apocalyptic number.

1170555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1170555 is a deficient number, since it is larger than the sum of its proper divisors (729765).

1170555 is a wasteful number, since it uses less digits than its factorization.

1170555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150.

The product of its (nonzero) digits is 875, while the sum is 24.

The square root of 1170555 is about 1081.9219010631. The cubic root of 1170555 is about 105.3894831841.

The spelling of 1170555 in words is "one million, one hundred seventy thousand, five hundred fifty-five".