423251 has 2 divisors, whose sum is σ = 423252. Its totient is φ = 423250.

The previous prime is 423233. The next prime is 423257. The reversal of 423251 is 152324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423251 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 423251.

It is not a weakly prime, because it can be changed into another prime (423257) 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, 211625 + 211626.

It is an arithmetic number, because the mean of its divisors is an integer number (211626).

2⁴²³²⁵¹ is an apocalyptic number.

423251 is a deficient number, since it is larger than the sum of its proper divisors (1).

423251 is an equidigital number, since it uses as much as digits as its factorization.

423251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 17.

The square root of 423251 is about 650.5774358214. The cubic root of 423251 is about 75.0814522491.

Adding to 423251 its reverse (152324), we get a palindrome (575575).

The spelling of 423251 in words is "four hundred twenty-three thousand, two hundred fifty-one".