1120500155 has 8 divisors (see below), whose sum is σ = 1366643184. Its totient is φ = 881704800.

The previous prime is 1120500133. The next prime is 1120500221. The reversal of 1120500155 is 5510050211.

It is a happy number.

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

It is not a de Polignac number, because 1120500155 - 2⁸ = 1120499899 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1836581 + ... + 1837190.

It is an arithmetic number, because the mean of its divisors is an integer number (170830398).

Almost surely, 2^1120500155 is an apocalyptic number.

1120500155 is a deficient number, since it is larger than the sum of its proper divisors (246143029).

1120500155 is an equidigital number, since it uses as much as digits as its factorization.

1120500155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673837.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 1120500155 is about 33473.8727218707. The cubic root of 1120500155 is about 1038.6533837867.

Adding to 1120500155 its reverse (5510050211), we get a palindrome (6630550366).

The spelling of 1120500155 in words is "one billion, one hundred twenty million, five hundred thousand, one hundred fifty-five".