541657 has 2 divisors, whose sum is σ = 541658.
Its totient is φ = 541656.
The previous prime is 541631. The next prime is 541661. The reversal of 541657 is 756145.
It can be divided in two parts, 54 and 1657, that added together give a triangular number (1711 = T58).
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 456976 + 84681 = 676^2 + 291^2
It is a cyclic number.
It is not a de Polignac number, because 541657 - 27 = 541529 is a prime.
541657 is a lucky number.
It is not a weakly prime, because it can be changed into another prime (548657) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270828 + 270829.
It is an arithmetic number, because the mean of its divisors is an integer number (270829).
2541657 is an apocalyptic number.
It is an amenable number.
541657 is a deficient number, since it is larger than the sum of its proper divisors (1).
541657 is an equidigital number, since it uses as much as digits as its factorization.
541657 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 4200, while the sum is 28.
The square root of 541657 is about 735.9735049579.
The cubic root of 541657 is about 81.5157358553.
The spelling of 541657 in words is "five hundred forty-one thousand, six hundred fifty-seven".