1045111056 has 80 divisors (see below), whose sum is σ = 2951031360. Its totient is φ = 316085760.

The previous prime is 1045111049. The next prime is 1045111097. The reversal of 1045111056 is 6501115401.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322050 + ... + 325278.

It is an arithmetic number, because the mean of its divisors is an integer number (36887892).

Almost surely, 2^1045111056 is an apocalyptic number.

1045111056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1045111056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1475515680).

1045111056 is an abundant number, since it is smaller than the sum of its proper divisors (1905920304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1045111056 is a wasteful number, since it uses less digits than its factorization.

1045111056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864 (or 3858 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1045111056 is about 32328.1774308420. The cubic root of 1045111056 is about 1014.8164085101.

Adding to 1045111056 its reverse (6501115401), we get a palindrome (7546226457).

It can be divided in two parts, 1045 and 111056, that added together give a triangular number (112101 = T₄₇₃).

The spelling of 1045111056 in words is "one billion, forty-five million, one hundred eleven thousand, fifty-six".