11028545 has 12 divisors (see below), whose sum is σ = 14547540. Its totient is φ = 8020320.

The previous prime is 11028509. The next prime is 11028547. The reversal of 11028545 is 54582011.

11028545 = T₈₀₁ + T₈₀₂ + ... + T₈₃₃.

It can be written as a sum of positive squares in 2 ways, for example, as 8690704 + 2337841 = 2948^2 + 1529^2 .

It is not a de Polignac number, because 11028545 - 2⁶ = 11028481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11028547) 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, 8510 + ... + 9719.

It is an arithmetic number, because the mean of its divisors is an integer number (1212295).

Almost surely, 2^11028545 is an apocalyptic number.

It is an amenable number.

11028545 is a deficient number, since it is larger than the sum of its proper divisors (3518995).

11028545 is a wasteful number, since it uses less digits than its factorization.

11028545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18256 (or 18245 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 11028545 is about 3320.9253228581. The cubic root of 11028545 is about 222.5902171705.

It can be divided in two parts, 110285 and 45, that multiplied together give a triangular number (4962825 = T₃₁₅₀).

The spelling of 11028545 in words is "eleven million, twenty-eight thousand, five hundred forty-five".