541218361 has 4 divisors (see below), whose sum is σ = 541545472. Its totient is φ = 540891252.

The previous prime is 541218347. The next prime is 541218373. The reversal of 541218361 is 163812145.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 541218361 - 2⁷ = 541218233 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541218311) 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, 161061 + ... + 164386.

It is an arithmetic number, because the mean of its divisors is an integer number (135386368).

Almost surely, 2^541218361 is an apocalyptic number.

It is an amenable number.

541218361 is a deficient number, since it is larger than the sum of its proper divisors (327111).

541218361 is a wasteful number, since it uses less digits than its factorization.

541218361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327110.

The product of its digits is 5760, while the sum is 31.

The square root of 541218361 is about 23264.1002619917. The cubic root of 541218361 is about 814.9372583966.

The spelling of 541218361 in words is "five hundred forty-one million, two hundred eighteen thousand, three hundred sixty-one".