133713193 has 4 divisors (see below), whose sum is σ = 135037188. Its totient is φ = 132389200.

The previous prime is 133713169. The next prime is 133713247. The reversal of 133713193 is 391317331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85229824 + 48483369 = 9232^2 + 6963^2 .

It is a cyclic number.

It is not a de Polignac number, because 133713193 - 2⁵ = 133713161 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133713493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661846 + ... + 662047.

It is an arithmetic number, because the mean of its divisors is an integer number (33759297).

Almost surely, 2^133713193 is an apocalyptic number.

It is an amenable number.

133713193 is a deficient number, since it is larger than the sum of its proper divisors (1323995).

133713193 is a wasteful number, since it uses less digits than its factorization.

133713193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323994.

The product of its digits is 5103, while the sum is 31.

The square root of 133713193 is about 11563.4420913498. The cubic root of 133713193 is about 511.3576450104.

The spelling of 133713193 in words is "one hundred thirty-three million, seven hundred thirteen thousand, one hundred ninety-three".