541215545 has 16 divisors (see below), whose sum is σ = 723537360. Its totient is φ = 385883904.

The previous prime is 541215541. The next prime is 541215547. The reversal of 541215545 is 545512145.

541215545 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 140375104 + 400840441 = 11848^2 + 20021^2 .

It is a cyclic number.

It is not a de Polignac number, because 541215545 - 2² = 541215541 is a prime.

It is a super-2 number, since 2×541215545² = 585828532299294050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (541215541) 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 15 ways as a sum of consecutive naturals, for example, 141674 + ... + 145443.

It is an arithmetic number, because the mean of its divisors is an integer number (45221085).

Almost surely, 2^541215545 is an apocalyptic number.

It is an amenable number.

541215545 is a deficient number, since it is larger than the sum of its proper divisors (182321815).

541215545 is a wasteful number, since it uses less digits than its factorization.

541215545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287164.

The product of its digits is 20000, while the sum is 32.

The square root of 541215545 is about 23264.0397394778. The cubic root of 541215545 is about 814.9358450008.

The spelling of 541215545 in words is "five hundred forty-one million, two hundred fifteen thousand, five hundred forty-five".