133713365 has 4 divisors (see below), whose sum is σ = 160456044. Its totient is φ = 106970688.

The previous prime is 133713361. The next prime is 133713383. The reversal of 133713365 is 563317331.

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 50794129 + 82919236 = 7127^2 + 9106^2 .

It is a cyclic number.

It is not a de Polignac number, because 133713365 - 2² = 133713361 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 (133713361) 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 3 ways as a sum of consecutive naturals, for example, 13371332 + ... + 13371341.

It is an arithmetic number, because the mean of its divisors is an integer number (40114011).

Almost surely, 2^133713365 is an apocalyptic number.

It is an amenable number.

133713365 is a deficient number, since it is larger than the sum of its proper divisors (26742679).

133713365 is an equidigital number, since it uses as much as digits as its factorization.

133713365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26742678.

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

The square root of 133713365 is about 11563.4495285793. The cubic root of 133713365 is about 511.3578642695.

The spelling of 133713365 in words is "one hundred thirty-three million, seven hundred thirteen thousand, three hundred sixty-five".