262538249 has 2 divisors, whose sum is σ = 262538250. Its totient is φ = 262538248.

The previous prime is 262538239. The next prime is 262538281. The reversal of 262538249 is 942835262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256000000 + 6538249 = 16000^2 + 2557^2 .

It is a cyclic number.

It is not a de Polignac number, because 262538249 - 2⁴ = 262538233 is a prime.

It is not a weakly prime, because it can be changed into another prime (262538209) 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, 131269124 + 131269125.

It is an arithmetic number, because the mean of its divisors is an integer number (131269125).

Almost surely, 2^262538249 is an apocalyptic number.

It is an amenable number.

262538249 is a deficient number, since it is larger than the sum of its proper divisors (1).

262538249 is an equidigital number, since it uses as much as digits as its factorization.

262538249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 41.

The square root of 262538249 is about 16203.0320927905. The cubic root of 262538249 is about 640.3206799500.

The spelling of 262538249 in words is "two hundred sixty-two million, five hundred thirty-eight thousand, two hundred forty-nine".