541641409 has 4 divisors (see below), whose sum is σ = 556280404. Its totient is φ = 527002416.

The previous prime is 541641391. The next prime is 541641413. The reversal of 541641409 is 904146145.

It is a happy number.

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 368640000 + 173001409 = 19200^2 + 13153^2 .

It is a cyclic number.

It is not a de Polignac number, because 541641409 - 2¹¹ = 541639361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541641209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7319442 + ... + 7319515.

It is an arithmetic number, because the mean of its divisors is an integer number (139070101).

Almost surely, 2^541641409 is an apocalyptic number.

It is an amenable number.

541641409 is a deficient number, since it is larger than the sum of its proper divisors (14638995).

541641409 is a wasteful number, since it uses less digits than its factorization.

541641409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14638994.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 541641409 is about 23273.1907782324. The cubic root of 541641409 is about 815.1495373420.

The spelling of 541641409 in words is "five hundred forty-one million, six hundred forty-one thousand, four hundred nine".