541491541 has 4 divisors (see below), whose sum is σ = 545444172. Its totient is φ = 537538912.

The previous prime is 541491529. The next prime is 541491563. The reversal of 541491541 is 145194145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145194145 = 5 ⋅29038829.

It can be written as a sum of positive squares in 2 ways, for example, as 350775441 + 190716100 = 18729^2 + 13810^2 .

It is a cyclic number.

It is not a de Polignac number, because 541491541 - 2⁷ = 541491413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 541491497 and 541491506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541491581) 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, 1976110 + ... + 1976383.

It is an arithmetic number, because the mean of its divisors is an integer number (136361043).

Almost surely, 2^541491541 is an apocalyptic number.

It is an amenable number.

541491541 is a deficient number, since it is larger than the sum of its proper divisors (3952631).

541491541 is a wasteful number, since it uses less digits than its factorization.

541491541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952630.

The product of its digits is 14400, while the sum is 34.

The square root of 541491541 is about 23269.9707992941. The cubic root of 541491541 is about 815.0743485437.

The spelling of 541491541 in words is "five hundred forty-one million, four hundred ninety-one thousand, five hundred forty-one".