263423249 has 2 divisors, whose sum is σ = 263423250. Its totient is φ = 263423248.

The previous prime is 263423219. The next prime is 263423263. The reversal of 263423249 is 942324362.

263423249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262213249 + 1210000 = 16193^2 + 1100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263423249 is a prime.

It is a super-2 number, since 2×263423249² = 138783616227432002, which contains 22 as substring.

It is equal to p_14372684 and since 263423249 and 14372684 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (263423219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131711624 + 131711625.

It is an arithmetic number, because the mean of its divisors is an integer number (131711625).

Almost surely, 2^263423249 is an apocalyptic number.

It is an amenable number.

263423249 is a deficient number, since it is larger than the sum of its proper divisors (1).

263423249 is an equidigital number, since it uses as much as digits as its factorization.

263423249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 35.

The square root of 263423249 is about 16230.3188200355. The cubic root of 263423249 is about 641.0393666453.

The spelling of 263423249 in words is "two hundred sixty-three million, four hundred twenty-three thousand, two hundred forty-nine".