1445181155 has 16 divisors (see below), whose sum is σ = 1910248704. Its totient is φ = 1040832480.

The previous prime is 1445181139. The next prime is 1445181167. The reversal of 1445181155 is 5511815441.

It is not a de Polignac number, because 1445181155 - 2⁴ = 1445181139 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 15 ways as a sum of consecutive naturals, for example, 121889 + ... + 133218.

It is an arithmetic number, because the mean of its divisors is an integer number (119390544).

Almost surely, 2^1445181155 is an apocalyptic number.

1445181155 is a deficient number, since it is larger than the sum of its proper divisors (465067549).

1445181155 is a wasteful number, since it uses less digits than its factorization.

1445181155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255226.

The product of its digits is 16000, while the sum is 35.

The square root of 1445181155 is about 38015.5383363172. The cubic root of 1445181155 is about 1130.5959617721.

Adding to 1445181155 its reverse (5511815441), we get a palindrome (6956996596).

The spelling of 1445181155 in words is "one billion, four hundred forty-five million, one hundred eighty-one thousand, one hundred fifty-five".