133513673 has 2 divisors, whose sum is σ = 133513674. Its totient is φ = 133513672.

The previous prime is 133513663. The next prime is 133513693. The reversal of 133513673 is 376315331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94225849 + 39287824 = 9707^2 + 6268^2 .

It is a cyclic number.

It is not a de Polignac number, because 133513673 - 2⁴ = 133513657 is a prime.

It is not a weakly prime, because it can be changed into another prime (133513663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66756836 + 66756837.

It is an arithmetic number, because the mean of its divisors is an integer number (66756837).

Almost surely, 2^133513673 is an apocalyptic number.

It is an amenable number.

133513673 is a deficient number, since it is larger than the sum of its proper divisors (1).

133513673 is an equidigital number, since it uses as much as digits as its factorization.

133513673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010, while the sum is 32.

The square root of 133513673 is about 11554.8116817194. The cubic root of 133513673 is about 511.1031778104.

The spelling of 133513673 in words is "one hundred thirty-three million, five hundred thirteen thousand, six hundred seventy-three".