133563373 has 12 divisors (see below), whose sum is σ = 142349760. Its totient is φ = 125292992.

The previous prime is 133563359. The next prime is 133563379. The reversal of 133563373 is 373365331.

It is not a de Polignac number, because 133563373 - 2²¹ = 131466221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133563379) 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 11 ways as a sum of consecutive naturals, for example, 120540 + ... + 121642.

It is an arithmetic number, because the mean of its divisors is an integer number (11862480).

Almost surely, 2^133563373 is an apocalyptic number.

It is an amenable number.

133563373 is a deficient number, since it is larger than the sum of its proper divisors (8786387).

133563373 is a wasteful number, since it uses less digits than its factorization.

133563373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556 (or 1539 counting only the distinct ones).

The product of its digits is 51030, while the sum is 34.

The square root of 133563373 is about 11556.9621008291. The cubic root of 133563373 is about 511.1665887358.

The spelling of 133563373 in words is "one hundred thirty-three million, five hundred sixty-three thousand, three hundred seventy-three".