263741249 has 2 divisors, whose sum is σ = 263741250. Its totient is φ = 263741248.

The previous prime is 263741243. The next prime is 263741251. The reversal of 263741249 is 942147362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173396224 + 90345025 = 13168^2 + 9505^2 .

It is a cyclic number.

It is not a de Polignac number, because 263741249 - 2¹² = 263737153 is a prime.

Together with 263741251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (263741243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131870624 + 131870625.

It is an arithmetic number, because the mean of its divisors is an integer number (131870625).

Almost surely, 2^263741249 is an apocalyptic number.

It is an amenable number.

263741249 is a deficient number, since it is larger than the sum of its proper divisors (1).

263741249 is an equidigital number, since it uses as much as digits as its factorization.

263741249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 263741249 is about 16240.1123456705. The cubic root of 263741249 is about 641.2972134705.

The spelling of 263741249 in words is "two hundred sixty-three million, seven hundred forty-one thousand, two hundred forty-nine".