360781 has 2 divisors, whose sum is σ = 360782. Its totient is φ = 360780.

The previous prime is 360779. The next prime is 360803. The reversal of 360781 is 187063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285156 + 75625 = 534^2 + 275^2 .

It is a cyclic number.

It is not a de Polignac number, because 360781 - 2¹ = 360779 is a prime.

It is a super-2 number, since 2×360781² = 260325859922, which contains 22 as substring.

Together with 360779, it forms a pair of twin primes.

360781 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (360181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180390 + 180391.

It is an arithmetic number, because the mean of its divisors is an integer number (180391).

2³⁶⁰⁷⁸¹ is an apocalyptic number.

It is an amenable number.

360781 is a deficient number, since it is larger than the sum of its proper divisors (1).

360781 is an equidigital number, since it uses as much as digits as its factorization.

360781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 360781 is about 600.6504807290. The cubic root of 360781 is about 71.1892721496.

The spelling of 360781 in words is "three hundred sixty thousand, seven hundred eighty-one".