1603112155 has 16 divisors (see below), whose sum is σ = 2040142464. Its totient is φ = 1205125120.

The previous prime is 1603112123. The next prime is 1603112183. The reversal of 1603112155 is 5512113061.

It is a happy number.

It is not a de Polignac number, because 1603112155 - 2⁵ = 1603112123 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39774 + ... + 69196.

It is an arithmetic number, because the mean of its divisors is an integer number (127508904).

Almost surely, 2^1603112155 is an apocalyptic number.

1603112155 is a deficient number, since it is larger than the sum of its proper divisors (437030309).

1603112155 is a wasteful number, since it uses less digits than its factorization.

1603112155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30086.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1603112155 is about 40038.8830388661. The cubic root of 1603112155 is about 1170.3649371740.

The spelling of 1603112155 in words is "one billion, six hundred three million, one hundred twelve thousand, one hundred fifty-five".