494333261 has 2 divisors, whose sum is σ = 494333262. Its totient is φ = 494333260.

The previous prime is 494333251. The next prime is 494333291. The reversal of 494333261 is 162333494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 478253161 + 16080100 = 21869^2 + 4010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494333261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494333221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247166630 + 247166631.

It is an arithmetic number, because the mean of its divisors is an integer number (247166631).

Almost surely, 2^494333261 is an apocalyptic number.

It is an amenable number.

494333261 is a deficient number, since it is larger than the sum of its proper divisors (1).

494333261 is an equidigital number, since it uses as much as digits as its factorization.

494333261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 35.

The square root of 494333261 is about 22233.6065675365. The cubic root of 494333261 is about 790.6906639646.

The spelling of 494333261 in words is "four hundred ninety-four million, three hundred thirty-three thousand, two hundred sixty-one".