1170855 has 60 divisors (see below), whose sum is σ = 2482920. Its totient is φ = 526176.

The previous prime is 1170853. The next prime is 1170857. The reversal of 1170855 is 5580711.

It is an interprime number because it is at equal distance from previous prime (1170853) and next prime (1170857).

It is not a de Polignac number, because 1170855 - 2¹ = 1170853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170853) 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 59 ways as a sum of consecutive naturals, for example, 19816 + ... + 19874.

It is an arithmetic number, because the mean of its divisors is an integer number (41382).

2^1170855 is an apocalyptic number.

1170855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1170855 is an abundant number, since it is smaller than the sum of its proper divisors (1312065).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1170855 is an equidigital number, since it uses as much as digits as its factorization.

1170855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 1170855 is about 1082.0605343510. The cubic root of 1170855 is about 105.3984857924.

1170855 divided by its sum of digits (27) gives a triangular number (43365 = T₂₉₄).

It can be divided in two parts, 1170 and 855, that added together give a square (2025 = 45²).

The spelling of 1170855 in words is "one million, one hundred seventy thousand, eight hundred fifty-five".