541669 has 2 divisors, whose sum is σ = 541670. Its totient is φ = 541668.

The previous prime is 541661. The next prime is 541693. The reversal of 541669 is 966145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 540225 + 1444 = 735^2 + 38^2 .

It is a cyclic number.

It is not a de Polignac number, because 541669 - 2³ = 541661 is a prime.

It is a super-2 number, since 2×541669² = 586810611122, which contains 22 as substring.

It is equal to p₄₄₆₉₈ and since 541669 and 44698 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 541669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270834 + 270835.

It is an arithmetic number, because the mean of its divisors is an integer number (270835).

2⁵⁴¹⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

541669 is a deficient number, since it is larger than the sum of its proper divisors (1).

541669 is an equidigital number, since it uses as much as digits as its factorization.

541669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 541669 is about 735.9816573801. The cubic root of 541669 is about 81.5163378239.

The spelling of 541669 in words is "five hundred forty-one thousand, six hundred sixty-nine".