1122275945 has 16 divisors (see below), whose sum is σ = 1620128640. Its totient is φ = 729057024.

The previous prime is 1122275923. The next prime is 1122275989. The reversal of 1122275945 is 5495722211.

It is a cyclic number.

It is not a de Polignac number, because 1122275945 - 2¹⁰ = 1122274921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122275899 and 1122275908.

It is an unprimeable number.

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, 843152 + ... + 844481.

It is an arithmetic number, because the mean of its divisors is an integer number (101258040).

Almost surely, 2^1122275945 is an apocalyptic number.

It is an amenable number.

1122275945 is a deficient number, since it is larger than the sum of its proper divisors (497852695).

1122275945 is a wasteful number, since it uses less digits than its factorization.

1122275945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687664.

The product of its digits is 50400, while the sum is 38.

The square root of 1122275945 is about 33500.3872365679. The cubic root of 1122275945 is about 1039.2017867413.

The spelling of 1122275945 in words is "one billion, one hundred twenty-two million, two hundred seventy-five thousand, nine hundred forty-five".