1122445263 has 8 divisors (see below), whose sum is σ = 1500544000. Its totient is φ = 746321688.

The previous prime is 1122445229. The next prime is 1122445309. The reversal of 1122445263 is 3625442211.

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

It is a de Polignac number, because none of the positive numbers 2^k-1122445263 is a prime.

It is a super-2 number, since 2×1122445263² = 2519766736862278338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122445263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122445763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492463 + ... + 494736.

It is an arithmetic number, because the mean of its divisors is an integer number (187568000).

Almost surely, 2^1122445263 is an apocalyptic number.

1122445263 is a deficient number, since it is larger than the sum of its proper divisors (378098737).

1122445263 is an equidigital number, since it uses as much as digits as its factorization.

1122445263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987581.

The product of its digits is 11520, while the sum is 30.

The square root of 1122445263 is about 33502.9142463756. The cubic root of 1122445263 is about 1039.2540456415.

Adding to 1122445263 its reverse (3625442211), we get a palindrome (4747887474).

The spelling of 1122445263 in words is "one billion, one hundred twenty-two million, four hundred forty-five thousand, two hundred sixty-three".