541801691 has 2 divisors, whose sum is σ = 541801692. Its totient is φ = 541801690.

The previous prime is 541801649. The next prime is 541801699. The reversal of 541801691 is 196108145.

541801691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 541801691 - 2⁶ = 541801627 is a prime.

It is not a weakly prime, because it can be changed into another prime (541801699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270900845 + 270900846.

It is an arithmetic number, because the mean of its divisors is an integer number (270900846).

Almost surely, 2^541801691 is an apocalyptic number.

541801691 is a deficient number, since it is larger than the sum of its proper divisors (1).

541801691 is an equidigital number, since it uses as much as digits as its factorization.

541801691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 541801691 is about 23276.6340135338. The cubic root of 541801691 is about 815.2299354987.

The spelling of 541801691 in words is "five hundred forty-one million, eight hundred one thousand, six hundred ninety-one".