494125817 has 2 divisors, whose sum is σ = 494125818. Its totient is φ = 494125816.

The previous prime is 494125783. The next prime is 494125823. The reversal of 494125817 is 718521494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 402042601 + 92083216 = 20051^2 + 9596^2 .

It is a cyclic number.

It is not a de Polignac number, because 494125817 - 2⁸ = 494125561 is a prime.

It is not a weakly prime, because it can be changed into another prime (494125897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247062908 + 247062909.

It is an arithmetic number, because the mean of its divisors is an integer number (247062909).

Almost surely, 2^494125817 is an apocalyptic number.

It is an amenable number.

494125817 is a deficient number, since it is larger than the sum of its proper divisors (1).

494125817 is an equidigital number, since it uses as much as digits as its factorization.

494125817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 41.

The square root of 494125817 is about 22228.9409779234. The cubic root of 494125817 is about 790.5800456184.

The spelling of 494125817 in words is "four hundred ninety-four million, one hundred twenty-five thousand, eight hundred seventeen".