278041 has 2 divisors, whose sum is σ = 278042. Its totient is φ = 278040.

The previous prime is 278029. The next prime is 278051. The reversal of 278041 is 140872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254016 + 24025 = 504^2 + 155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-278041 is a prime.

It is a Chen prime.

278041 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (278051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139020 + 139021.

It is an arithmetic number, because the mean of its divisors is an integer number (139021).

2²⁷⁸⁰⁴¹ is an apocalyptic number.

It is an amenable number.

278041 is a deficient number, since it is larger than the sum of its proper divisors (1).

278041 is an equidigital number, since it uses as much as digits as its factorization.

278041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 278041 is about 527.2959320913. The cubic root of 278041 is about 65.2683971162.

The spelling of 278041 in words is "two hundred seventy-eight thousand, forty-one".