133535673 has 12 divisors (see below), whose sum is σ = 196524900. Its totient is φ = 87343776.

The previous prime is 133535671. The next prime is 133535707. The reversal of 133535673 is 376535331.

It can be written as a sum of positive squares in 2 ways, for example, as 70761744 + 62773929 = 8412^2 + 7923^2 .

It is not a de Polignac number, because 133535673 - 2¹ = 133535671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133535671) 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 11 ways as a sum of consecutive naturals, for example, 139498 + ... + 140451.

It is an arithmetic number, because the mean of its divisors is an integer number (16377075).

Almost surely, 2^133535673 is an apocalyptic number.

It is an amenable number.

133535673 is a deficient number, since it is larger than the sum of its proper divisors (62989227).

133535673 is a wasteful number, since it uses less digits than its factorization.

133535673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280008 (or 280005 counting only the distinct ones).

The product of its digits is 85050, while the sum is 36.

The square root of 133535673 is about 11555.7636268660. The cubic root of 133535673 is about 511.1312489738.

The spelling of 133535673 in words is "one hundred thirty-three million, five hundred thirty-five thousand, six hundred seventy-three".