494109653 has 2 divisors, whose sum is σ = 494109654. Its totient is φ = 494109652.

The previous prime is 494109613. The next prime is 494109659. The reversal of 494109653 is 356901494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 466473604 + 27636049 = 21598^2 + 5257^2 .

It is a cyclic number.

It is not a de Polignac number, because 494109653 - 2¹⁸ = 493847509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 494109653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494109659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247054826 + 247054827.

It is an arithmetic number, because the mean of its divisors is an integer number (247054827).

Almost surely, 2^494109653 is an apocalyptic number.

It is an amenable number.

494109653 is a deficient number, since it is larger than the sum of its proper divisors (1).

494109653 is an equidigital number, since it uses as much as digits as its factorization.

494109653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 494109653 is about 22228.5773948762. The cubic root of 494109653 is about 790.5714249563.

The spelling of 494109653 in words is "four hundred ninety-four million, one hundred nine thousand, six hundred fifty-three".