426251 has 6 divisors (see below), whose sum is σ = 495900. Its totient is φ = 365316.

The previous prime is 426233. The next prime is 426253. The reversal of 426251 is 152624.

It is a happy number.

It is not a de Polignac number, because 426251 - 2¹⁴ = 409867 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 426251.

It is not an unprimeable number, because it can be changed into a prime (426253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4301 + ... + 4398.

It is an arithmetic number, because the mean of its divisors is an integer number (82650).

2⁴²⁶²⁵¹ is an apocalyptic number.

426251 is a deficient number, since it is larger than the sum of its proper divisors (69649).

426251 is an equidigital number, since it uses as much as digits as its factorization.

426251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8713 (or 8706 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 426251 is about 652.8790086992. The cubic root of 426251 is about 75.2584270353.

Adding to 426251 its reverse (152624), we get a palindrome (578875).

The spelling of 426251 in words is "four hundred twenty-six thousand, two hundred fifty-one".