249133 has 2 divisors, whose sum is σ = 249134. Its totient is φ = 249132.

The previous prime is 249131. The next prime is 249143. The reversal of 249133 is 331942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243049 + 6084 = 493^2 + 78^2 .

It is a cyclic number.

It is not a de Polignac number, because 249133 - 2¹ = 249131 is a prime.

Together with 249131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249131) 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, 124566 + 124567.

It is an arithmetic number, because the mean of its divisors is an integer number (124567).

2²⁴⁹¹³³ is an apocalyptic number.

It is an amenable number.

249133 is a deficient number, since it is larger than the sum of its proper divisors (1).

249133 is an equidigital number, since it uses as much as digits as its factorization.

249133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 22.

The square root of 249133 is about 499.1322470047. The cubic root of 249133 is about 62.9231447116.

The spelling of 249133 in words is "two hundred forty-nine thousand, one hundred thirty-three".