494251133 has 8 divisors (see below), whose sum is σ = 497411640. Its totient is φ = 491097600.

The previous prime is 494251103. The next prime is 494251157. The reversal of 494251133 is 331152494.

It can be written as a sum of positive squares in 4 ways, for example, as 138815524 + 355435609 = 11782^2 + 18853^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 494251133 - 2²⁰ = 493202557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 494251133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494251103) 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 in 7 ways as a sum of consecutive naturals, for example, 235553 + ... + 237641.

It is an arithmetic number, because the mean of its divisors is an integer number (62176455).

Almost surely, 2^494251133 is an apocalyptic number.

It is an amenable number.

494251133 is a deficient number, since it is larger than the sum of its proper divisors (3160507).

494251133 is a wasteful number, since it uses less digits than its factorization.

494251133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487.

The product of its digits is 12960, while the sum is 32.

The square root of 494251133 is about 22231.7595569941. The cubic root of 494251133 is about 790.6468733719.

The spelling of 494251133 in words is "four hundred ninety-four million, two hundred fifty-one thousand, one hundred thirty-three".