249454253 has 2 divisors, whose sum is σ = 249454254. Its totient is φ = 249454252.

The previous prime is 249454229. The next prime is 249454313. The reversal of 249454253 is 352454942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208455844 + 40998409 = 14438^2 + 6403^2 .

It is a cyclic number.

It is not a de Polignac number, because 249454253 - 2⁶ = 249454189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249451253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124727126 + 124727127.

It is an arithmetic number, because the mean of its divisors is an integer number (124727127).

Almost surely, 2^249454253 is an apocalyptic number.

It is an amenable number.

249454253 is a deficient number, since it is larger than the sum of its proper divisors (1).

249454253 is an equidigital number, since it uses as much as digits as its factorization.

249454253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 38.

The square root of 249454253 is about 15794.1208365645. The cubic root of 249454253 is about 629.5017922272.

The spelling of 249454253 in words is "two hundred forty-nine million, four hundred fifty-four thousand, two hundred fifty-three".