2678251 has 2 divisors, whose sum is σ = 2678252. Its totient is φ = 2678250.

The previous prime is 2678227. The next prime is 2678311. The reversal of 2678251 is 1528762.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2678251 - 2⁵ = 2678219 is a prime.

It is not a weakly prime, because it can be changed into another prime (2678551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1339125 + 1339126.

It is an arithmetic number, because the mean of its divisors is an integer number (1339126).

2^2678251 is an apocalyptic number.

2678251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2678251 is an equidigital number, since it uses as much as digits as its factorization.

2678251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 2678251 is about 1636.5362812966. The cubic root of 2678251 is about 138.8727680015.

The spelling of 2678251 in words is "two million, six hundred seventy-eight thousand, two hundred fifty-one".