1045445122 has 8 divisors (see below), whose sum is σ = 1568313036. Its totient is φ = 522674112.

The previous prime is 1045445119. The next prime is 1045445129. The reversal of 1045445122 is 2215445401.

It can be written as a sum of positive squares in 2 ways, for example, as 962798841 + 82646281 = 31029^2 + 9091^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1045445122² = 2185911006227189768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1045445129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16318 + ... + 48550.

Almost surely, 2^1045445122 is an apocalyptic number.

1045445122 is a deficient number, since it is larger than the sum of its proper divisors (522867914).

1045445122 is a wasteful number, since it uses less digits than its factorization.

1045445122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48452.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 1045445122 is about 32333.3438109949. The cubic root of 1045445122 is about 1014.9245244661.

The spelling of 1045445122 in words is "one billion, forty-five million, four hundred forty-five thousand, one hundred twenty-two".