278051 has 2 divisors, whose sum is σ = 278052. Its totient is φ = 278050.

The previous prime is 278041. The next prime is 278063. The reversal of 278051 is 150872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 278051 - 2¹⁸ = 15907 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 278051.

It is not a weakly prime, because it can be changed into another prime (278041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139025 + 139026.

It is an arithmetic number, because the mean of its divisors is an integer number (139026).

2²⁷⁸⁰⁵¹ is an apocalyptic number.

278051 is a deficient number, since it is larger than the sum of its proper divisors (1).

278051 is an equidigital number, since it uses as much as digits as its factorization.

278051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 278051 is about 527.3054143473. The cubic root of 278051 is about 65.2691795861.

The spelling of 278051 in words is "two hundred seventy-eight thousand, fifty-one".