11020545 has 12 divisors (see below), whose sum is σ = 19102356. Its totient is φ = 5877600.

The previous prime is 11020543. The next prime is 11020567. The reversal of 11020545 is 54502011.

It can be written as a sum of positive squares in 2 ways, for example, as 2359296 + 8661249 = 1536^2 + 2943^2 .

It is not a de Polignac number, because 11020545 - 2¹ = 11020543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11020543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122406 + ... + 122495.

It is an arithmetic number, because the mean of its divisors is an integer number (1591863).

Almost surely, 2^11020545 is an apocalyptic number.

11020545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11020545 is a deficient number, since it is larger than the sum of its proper divisors (8081811).

11020545 is a wasteful number, since it uses less digits than its factorization.

11020545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244912 (or 244909 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 11020545 is about 3319.7206207752. The cubic root of 11020545 is about 222.5363825536.

Adding to 11020545 its reverse (54502011), we get a palindrome (65522556).

The spelling of 11020545 in words is "eleven million, twenty thousand, five hundred forty-five".