1122145005 has 16 divisors (see below), whose sum is σ = 1801920384. Its totient is φ = 596314560.

The previous prime is 1122145001. The next prime is 1122145033. The reversal of 1122145005 is 5005412211.

It is not a de Polignac number, because 1122145005 - 2² = 1122145001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122145001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130881 + ... + 139190.

It is an arithmetic number, because the mean of its divisors is an integer number (112620024).

Almost surely, 2^1122145005 is an apocalyptic number.

1122145005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1122145005 is a deficient number, since it is larger than the sum of its proper divisors (679775379).

1122145005 is a wasteful number, since it uses less digits than its factorization.

1122145005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270356.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1122145005 is about 33498.4328737928. The cubic root of 1122145005 is about 1039.1613693570.

Adding to 1122145005 its reverse (5005412211), we get a palindrome (6127557216).

The spelling of 1122145005 in words is "one billion, one hundred twenty-two million, one hundred forty-five thousand, five".