133789313 has 4 divisors (see below), whose sum is σ = 152902080. Its totient is φ = 114676548.

The previous prime is 133789309. The next prime is 133789351. The reversal of 133789313 is 313987331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 133789313 - 2² = 133789309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133789613) 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, 9556373 + ... + 9556386.

It is an arithmetic number, because the mean of its divisors is an integer number (38225520).

Almost surely, 2^133789313 is an apocalyptic number.

It is an amenable number.

133789313 is a deficient number, since it is larger than the sum of its proper divisors (19112767).

133789313 is an equidigital number, since it uses as much as digits as its factorization.

133789313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19112766.

The product of its digits is 40824, while the sum is 38.

The square root of 133789313 is about 11566.7330305493. The cubic root of 133789313 is about 511.4546615154.

The spelling of 133789313 in words is "one hundred thirty-three million, seven hundred eighty-nine thousand, three hundred thirteen".