133101313 has 4 divisors (see below), whose sum is σ = 140930820. Its totient is φ = 125271808.

The previous prime is 133101301. The next prime is 133101323. The reversal of 133101313 is 313101331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313101331 = 773 ⋅405047.

It can be written as a sum of positive squares in 2 ways, for example, as 120626289 + 12475024 = 10983^2 + 3532^2 .

It is a cyclic number.

It is not a de Polignac number, because 133101313 - 2¹⁷ = 132970241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133101323) 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, 3914728 + ... + 3914761.

It is an arithmetic number, because the mean of its divisors is an integer number (35232705).

Almost surely, 2^133101313 is an apocalyptic number.

It is an amenable number.

133101313 is a deficient number, since it is larger than the sum of its proper divisors (7829507).

133101313 is an equidigital number, since it uses as much as digits as its factorization.

133101313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7829506.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 133101313 is about 11536.9542341122. The cubic root of 133101313 is about 510.5764505916.

Adding to 133101313 its reverse (313101331), we get a palindrome (446202644).

The spelling of 133101313 in words is "one hundred thirty-three million, one hundred one thousand, three hundred thirteen".