541221066 has 12 divisors (see below), whose sum is σ = 1172645682. Its totient is φ = 180407016.

The previous prime is 541221029. The next prime is 541221067. The reversal of 541221066 is 660122145.

It can be written as a sum of positive squares in only one way, i.e., 370370025 + 170851041 = 19245^2 + 13071^2 .

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 5 ways as a sum of consecutive naturals, for example, 15033901 + ... + 15033936.

Almost surely, 2^541221066 is an apocalyptic number.

541221066 is an abundant number, since it is smaller than the sum of its proper divisors (631424616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

541221066 is a wasteful number, since it uses less digits than its factorization.

541221066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30067845 (or 30067842 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 541221066 is about 23264.1583987042. The cubic root of 541221066 is about 814.9386160751.

The spelling of 541221066 in words is "five hundred forty-one million, two hundred twenty-one thousand, sixty-six".