2018251 has 2 divisors, whose sum is σ = 2018252. Its totient is φ = 2018250.

The previous prime is 2018249. The next prime is 2018281. The reversal of 2018251 is 1528102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2018251 - 2¹ = 2018249 is a prime.

Together with 2018249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2018281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009125 + 1009126.

It is an arithmetic number, because the mean of its divisors is an integer number (1009126).

2^2018251 is an apocalyptic number.

2018251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018251 is an equidigital number, since it uses as much as digits as its factorization.

2018251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2018251 is about 1420.6516110574. The cubic root of 2018251 is about 126.3741920752.

The spelling of 2018251 in words is "two million, eighteen thousand, two hundred fifty-one".