1122042945 has 16 divisors (see below), whose sum is σ = 1843790400. Its totient is φ = 582249024.

The previous prime is 1122042907. The next prime is 1122042947. The reversal of 1122042945 is 5492402211.

It is not a de Polignac number, because 1122042945 - 2⁸ = 1122042689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122042947) 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, 1010295 + ... + 1011404.

It is an arithmetic number, because the mean of its divisors is an integer number (115236900).

Almost surely, 2^1122042945 is an apocalyptic number.

1122042945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1122042945 is a deficient number, since it is larger than the sum of its proper divisors (721747455).

1122042945 is a wasteful number, since it uses less digits than its factorization.

1122042945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021744.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1122042945 is about 33496.9094843091. The cubic root of 1122042945 is about 1039.1298642115.

The spelling of 1122042945 in words is "one billion, one hundred twenty-two million, forty-two thousand, nine hundred forty-five".