251233 has 2 divisors, whose sum is σ = 251234. Its totient is φ = 251232.

The previous prime is 251231. The next prime is 251257. The reversal of 251233 is 332152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214369 + 36864 = 463^2 + 192^2 .

It is a cyclic number.

It is not a de Polignac number, because 251233 - 2¹ = 251231 is a prime.

Together with 251231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (251231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125616 + 125617.

It is an arithmetic number, because the mean of its divisors is an integer number (125617).

2²⁵¹²³³ is an apocalyptic number.

It is an amenable number.

251233 is a deficient number, since it is larger than the sum of its proper divisors (1).

251233 is an equidigital number, since it uses as much as digits as its factorization.

251233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180, while the sum is 16.

The square root of 251233 is about 501.2314834485. The cubic root of 251233 is about 63.0994482083.

Adding to 251233 its reverse (332152), we get a palindrome (583385).

It can be divided in two parts, 251 and 233, that added together give a palindrome (484).

The spelling of 251233 in words is "two hundred fifty-one thousand, two hundred thirty-three".