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766541 is a prime number
BaseRepresentation
bin10111011001001001101
31102221111102
42323021031
5144012131
624232445
76341546
oct2731115
91387442
10766541
11483a06
1230b725
1320ab99
1415d4cd
151021cb
hexbb24d

766541 has 2 divisors, whose sum is σ = 766542. Its totient is φ = 766540.

The previous prime is 766531. The next prime is 766543. The reversal of 766541 is 145667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 568516 + 198025 = 754^2 + 445^2 .

It is a cyclic number.

It is not a de Polignac number, because 766541 - 26 = 766477 is a prime.

It is a Sophie Germain prime.

Together with 766543, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a nialpdrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 766541.

It is not a weakly prime, because it can be changed into another prime (766543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383270 + 383271.

It is an arithmetic number, because the mean of its divisors is an integer number (383271).

2766541 is an apocalyptic number.

It is an amenable number.

766541 is a deficient number, since it is larger than the sum of its proper divisors (1).

766541 is an equidigital number, since it uses as much as digits as its factorization.

766541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 766541 is about 875.5232721065. The cubic root of 766541 is about 91.5191117374.

The spelling of 766541 in words is "seven hundred sixty-six thousand, five hundred forty-one".