541221065 has 16 divisors (see below), whose sum is σ = 809723520. Its totient is φ = 337384320.

The previous prime is 541221029. The next prime is 541221067. The reversal of 541221065 is 560122145.

It is not a de Polignac number, because 541221065 - 2¹⁴ = 541204681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (541221067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 702500 + ... + 703269.

It is an arithmetic number, because the mean of its divisors is an integer number (50607720).

Almost surely, 2^541221065 is an apocalyptic number.

541221065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

541221065 is a deficient number, since it is larger than the sum of its proper divisors (268502455).

541221065 is a wasteful number, since it uses less digits than its factorization.

541221065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405792.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 541221065 is about 23264.1583772119. The cubic root of 541221065 is about 814.9386155732.

The spelling of 541221065 in words is "five hundred forty-one million, two hundred twenty-one thousand, sixty-five".