251159 has 2 divisors, whose sum is σ = 251160.
Its totient is φ = 251158.
The previous prime is 251149. The next prime is 251171. The reversal of 251159 is 951152.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 251159 - 24 = 251143 is a prime.
It is a Chen prime.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 251159.
It is not a weakly prime, because it can be changed into another prime (251149) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125579 + 125580.
It is an arithmetic number, because the mean of its divisors is an integer number (125580).
2251159 is an apocalyptic number.
251159 is a deficient number, since it is larger than the sum of its proper divisors (1).
251159 is an equidigital number, since it uses as much as digits as its factorization.
251159 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 450, while the sum is 23.
The square root of 251159 is about 501.1576598237.
The cubic root of 251159 is about 63.0932523428.
The spelling of 251159 in words is "two hundred fifty-one thousand, one hundred fifty-nine".