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531841 is a prime number
BaseRepresentation
bin10000001110110000001
31000000112211
42001312001
5114004331
615222121
74343362
oct2016601
91000484
10531841
11333642
12217941
131580cb
14dbb69
15a78b1
hex81d81

531841 has 2 divisors, whose sum is σ = 531842. Its totient is φ = 531840.

The previous prime is 531833. The next prime is 531847. The reversal of 531841 is 148135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 531441 + 400 = 729^2 + 20^2 .

It is a cyclic number.

It is not a de Polignac number, because 531841 - 23 = 531833 is a prime.

It is not a weakly prime, because it can be changed into another prime (531847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265920 + 265921.

It is an arithmetic number, because the mean of its divisors is an integer number (265921).

2531841 is an apocalyptic number.

It is an amenable number.

531841 is a deficient number, since it is larger than the sum of its proper divisors (1).

531841 is an equidigital number, since it uses as much as digits as its factorization.

531841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 22.

The square root of 531841 is about 729.2742968184. The cubic root of 531841 is about 81.0203170089.

Adding to 531841 its reverse (148135), we get a palindrome (679976).

The spelling of 531841 in words is "five hundred thirty-one thousand, eight hundred forty-one".