541099391 has 16 divisors (see below), whose sum is σ = 632822784. Its totient is φ = 453021984.

The previous prime is 541099387. The next prime is 541099393. The reversal of 541099391 is 193990145.

It is a cyclic number.

It is not a de Polignac number, because 541099391 - 2² = 541099387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541099393) 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, 200336 + ... + 203018.

It is an arithmetic number, because the mean of its divisors is an integer number (39551424).

Almost surely, 2^541099391 is an apocalyptic number.

541099391 is a deficient number, since it is larger than the sum of its proper divisors (91723393).

541099391 is a wasteful number, since it uses less digits than its factorization.

541099391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350.

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 541099391 is about 23261.5431775280. The cubic root of 541099391 is about 814.8775411626.

The spelling of 541099391 in words is "five hundred forty-one million, ninety-nine thousand, three hundred ninety-one".