1120155 has 16 divisors (see below), whose sum is σ = 1827360. Its totient is φ = 585728.

The previous prime is 1120153. The next prime is 1120157. The reversal of 1120155 is 5510211.

It is an interprime number because it is at equal distance from previous prime (1120153) and next prime (1120157).

It is a cyclic number.

It is not a de Polignac number, because 1120155 - 2¹ = 1120153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1120153) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 91 + ... + 1499.

It is an arithmetic number, because the mean of its divisors is an integer number (114210).

2^1120155 is an apocalyptic number.

1120155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1120155 is a deficient number, since it is larger than the sum of its proper divisors (707205).

1120155 is a wasteful number, since it uses less digits than its factorization.

1120155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1120155 is about 1058.3737525090. The cubic root of 1120155 is about 103.8546725100.

Adding to 1120155 its reverse (5510211), we get a palindrome (6630366).

It can be divided in two parts, 1120 and 155, that added together give a triangular number (1275 = T₅₀).

The spelling of 1120155 in words is "one million, one hundred twenty thousand, one hundred fifty-five".