541902217 has 4 divisors (see below), whose sum is σ = 573778836. Its totient is φ = 510025600.

The previous prime is 541902209. The next prime is 541902247. The reversal of 541902217 is 712209145.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 323424256 + 218477961 = 17984^2 + 14781^2 .

It is a cyclic number.

It is not a de Polignac number, because 541902217 - 2³ = 541902209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541902247) 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, 15938284 + ... + 15938317.

It is an arithmetic number, because the mean of its divisors is an integer number (143444709).

Almost surely, 2^541902217 is an apocalyptic number.

It is an amenable number.

541902217 is a deficient number, since it is larger than the sum of its proper divisors (31876619).

541902217 is a wasteful number, since it uses less digits than its factorization.

541902217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31876618.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 541902217 is about 23278.7932891720. The cubic root of 541902217 is about 815.2803516921.

The spelling of 541902217 in words is "five hundred forty-one million, nine hundred two thousand, two hundred seventeen".