1100056145 has 32 divisors (see below), whose sum is σ = 1427188896. Its totient is φ = 811008000.

The previous prime is 1100056099. The next prime is 1100056157. The reversal of 1100056145 is 5416500011.

It can be written as a sum of positive squares in 16 ways, for example, as 46144849 + 1053911296 = 6793^2 + 32464^2 .

It is not a de Polignac number, because 1100056145 - 2²⁸ = 831620689 is a prime.

It is a super-2 number, since 2×1100056145² = 2420247044304522050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1100056145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 832085 + ... + 833405.

It is an arithmetic number, because the mean of its divisors is an integer number (44599653).

Almost surely, 2^1100056145 is an apocalyptic number.

It is an amenable number.

1100056145 is a deficient number, since it is larger than the sum of its proper divisors (327132751).

1100056145 is a wasteful number, since it uses less digits than its factorization.

1100056145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1100056145 is about 33167.0943104759. The cubic root of 1100056145 is about 1032.2976779961.

Adding to 1100056145 its reverse (5416500011), we get a palindrome (6516556156).

The spelling of 1100056145 in words is "one billion, one hundred million, fifty-six thousand, one hundred forty-five".