1120428155 has 16 divisors (see below), whose sum is σ = 1676277504. Its totient is φ = 698448480.

The previous prime is 1120428151. The next prime is 1120428173. The reversal of 1120428155 is 5518240211.

It is not a de Polignac number, because 1120428155 - 2² = 1120428151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1120428151) 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, 1454717 + ... + 1455486.

It is an arithmetic number, because the mean of its divisors is an integer number (104767344).

Almost surely, 2^1120428155 is an apocalyptic number.

1120428155 is a deficient number, since it is larger than the sum of its proper divisors (555849349).

1120428155 is a wasteful number, since it uses less digits than its factorization.

1120428155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910226.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 1120428155 is about 33472.7972389521. The cubic root of 1120428155 is about 1038.6311363867.

Adding to 1120428155 its reverse (5518240211), we get a palindrome (6638668366).

The spelling of 1120428155 in words is "one billion, one hundred twenty million, four hundred twenty-eight thousand, one hundred fifty-five".