1122104145 has 32 divisors (see below), whose sum is σ = 1817247744. Its totient is φ = 591192000.

The previous prime is 1122104131. The next prime is 1122104149. The reversal of 1122104145 is 5414012211.

It is not a de Polignac number, because 1122104145 - 2¹¹ = 1122102097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122104149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 974320 + ... + 975470.

It is an arithmetic number, because the mean of its divisors is an integer number (56788992).

Almost surely, 2^1122104145 is an apocalyptic number.

1122104145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1122104145 is a deficient number, since it is larger than the sum of its proper divisors (695143599).

1122104145 is a wasteful number, since it uses less digits than its factorization.

1122104145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1122104145 is about 33497.8229889645. The cubic root of 1122104145 is about 1039.1487564152.

Adding to 1122104145 its reverse (5414012211), we get a palindrome (6536116356).

The spelling of 1122104145 in words is "one billion, one hundred twenty-two million, one hundred four thousand, one hundred forty-five".