263983147 has 2 divisors, whose sum is σ = 263983148. Its totient is φ = 263983146.

The previous prime is 263983103. The next prime is 263983171. The reversal of 263983147 is 741389362.

263983147 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263983147 is a prime.

It is not a weakly prime, because it can be changed into another prime (263983547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131991573 + 131991574.

It is an arithmetic number, because the mean of its divisors is an integer number (131991574).

Almost surely, 2^263983147 is an apocalyptic number.

263983147 is a deficient number, since it is larger than the sum of its proper divisors (1).

263983147 is an equidigital number, since it uses as much as digits as its factorization.

263983147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 263983147 is about 16247.5581857706. The cubic root of 263983147 is about 641.4932150582.

The spelling of 263983147 in words is "two hundred sixty-three million, nine hundred eighty-three thousand, one hundred forty-seven".