263346091 has 2 divisors, whose sum is σ = 263346092. Its totient is φ = 263346090.

The previous prime is 263346077. The next prime is 263346103. The reversal of 263346091 is 190643362.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263346091 - 2⁵ = 263346059 is a prime.

It is equal to p_14368732 and since 263346091 and 14368732 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 (263346001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131673045 + 131673046.

It is an arithmetic number, because the mean of its divisors is an integer number (131673046).

Almost surely, 2^263346091 is an apocalyptic number.

263346091 is a deficient number, since it is larger than the sum of its proper divisors (1).

263346091 is an equidigital number, since it uses as much as digits as its factorization.

263346091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 263346091 is about 16227.9416747781. The cubic root of 263346091 is about 640.9767726443.

The spelling of 263346091 in words is "two hundred sixty-three million, three hundred forty-six thousand, ninety-one".