1124155 has 4 divisors (see below), whose sum is σ = 1348992. Its totient is φ = 899320.

The previous prime is 1124147. The next prime is 1124197. The reversal of 1124155 is 5514211.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1124155 - 2³ = 1124147 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 112411 + ... + 112420.

It is an arithmetic number, because the mean of its divisors is an integer number (337248).

2^1124155 is an apocalyptic number.

1124155 is a deficient number, since it is larger than the sum of its proper divisors (224837).

1124155 is an equidigital number, since it uses as much as digits as its factorization.

1124155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224836.

The product of its digits is 200, while the sum is 19.

The square root of 1124155 is about 1060.2617601328. The cubic root of 1124155 is about 103.9781450625.

Adding to 1124155 its reverse (5514211), we get a palindrome (6638366).

The spelling of 1124155 in words is "one million, one hundred twenty-four thousand, one hundred fifty-five".