133788673 has 2 divisors, whose sum is σ = 133788674. Its totient is φ = 133788672.

The previous prime is 133788667. The next prime is 133788701. The reversal of 133788673 is 376887331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120626289 + 13162384 = 10983^2 + 3628^2 .

It is a cyclic number.

It is not a de Polignac number, because 133788673 - 2¹³ = 133780481 is a prime.

It is not a weakly prime, because it can be changed into another prime (133788643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66894336 + 66894337.

It is an arithmetic number, because the mean of its divisors is an integer number (66894337).

Almost surely, 2^133788673 is an apocalyptic number.

It is an amenable number.

133788673 is a deficient number, since it is larger than the sum of its proper divisors (1).

133788673 is an equidigital number, since it uses as much as digits as its factorization.

133788673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

The square root of 133788673 is about 11566.7053649689. The cubic root of 133788673 is about 511.4538459757.

The spelling of 133788673 in words is "one hundred thirty-three million, seven hundred eighty-eight thousand, six hundred seventy-three".