541502545 has 4 divisors (see below), whose sum is σ = 649803060. Its totient is φ = 433202032.

The previous prime is 541502543. The next prime is 541502561. The reversal of 541502545 is 545205145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545205145 = 5 ⋅109041029.

It can be written as a sum of positive squares in 2 ways, for example, as 271623361 + 269879184 = 16481^2 + 16428^2 .

It is a cyclic number.

It is not a de Polignac number, because 541502545 - 2¹ = 541502543 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (541502543) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 54150250 + ... + 54150259.

It is an arithmetic number, because the mean of its divisors is an integer number (162450765).

Almost surely, 2^541502545 is an apocalyptic number.

It is an amenable number.

541502545 is a deficient number, since it is larger than the sum of its proper divisors (108300515).

541502545 is a wasteful number, since it uses less digits than its factorization.

541502545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108300514.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 541502545 is about 23270.2072401601. The cubic root of 541502545 is about 815.0798697241.

The spelling of 541502545 in words is "five hundred forty-one million, five hundred two thousand, five hundred forty-five".