487944133 has 2 divisors, whose sum is σ = 487944134. Its totient is φ = 487944132.

The previous prime is 487944043. The next prime is 487944137. The reversal of 487944133 is 331449784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396129409 + 91814724 = 19903^2 + 9582^2 .

It is a cyclic number.

It is not a de Polignac number, because 487944133 - 2¹⁷ = 487813061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 487944133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487944137) 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, 243972066 + 243972067.

It is an arithmetic number, because the mean of its divisors is an integer number (243972067).

Almost surely, 2^487944133 is an apocalyptic number.

It is an amenable number.

487944133 is a deficient number, since it is larger than the sum of its proper divisors (1).

487944133 is an equidigital number, since it uses as much as digits as its factorization.

487944133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The square root of 487944133 is about 22089.4575080512. The cubic root of 487944133 is about 787.2693917187.

The spelling of 487944133 in words is "four hundred eighty-seven million, nine hundred forty-four thousand, one hundred thirty-three".