497221133 has 4 divisors (see below), whose sum is σ = 510659580. Its totient is φ = 483782688.

The previous prime is 497221099. The next prime is 497221141. The reversal of 497221133 is 331122794.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331122794 = 2 ⋅165561397.

It can be written as a sum of positive squares in 2 ways, for example, as 207302404 + 289918729 = 14398^2 + 17027^2 .

It is a cyclic number.

It is not a de Polignac number, because 497221133 - 2⁶ = 497221069 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 497221133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497221163) 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 in 3 ways as a sum of consecutive naturals, for example, 6719168 + ... + 6719241.

It is an arithmetic number, because the mean of its divisors is an integer number (127664895).

Almost surely, 2^497221133 is an apocalyptic number.

It is an amenable number.

497221133 is a deficient number, since it is larger than the sum of its proper divisors (13438447).

497221133 is a wasteful number, since it uses less digits than its factorization.

497221133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13438446.

The product of its digits is 9072, while the sum is 32.

The square root of 497221133 is about 22298.4558433987. The cubic root of 497221133 is about 792.2274013929.

The spelling of 497221133 in words is "four hundred ninety-seven million, two hundred twenty-one thousand, one hundred thirty-three".