133353331 has 4 divisors (see below), whose sum is σ = 133951552. Its totient is φ = 132755112.

The previous prime is 133353329. The next prime is 133353347.

133353331 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 133353331 - 2¹ = 133353329 is a prime.

It is a super-2 number, since 2×133353331² = 35566221777591122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133353296 and 133353305.

It is not an unprimeable number, because it can be changed into a prime (133353301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298776 + ... + 299221.

It is an arithmetic number, because the mean of its divisors is an integer number (33487888).

Almost surely, 2^133353331 is an apocalyptic number.

133353331 is a deficient number, since it is larger than the sum of its proper divisors (598221).

133353331 is an equidigital number, since it uses as much as digits as its factorization.

133353331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598220.

The product of its digits is 3645, while the sum is 25.

The square root of 133353331 is about 11547.8712756941. The cubic root of 133353331 is about 510.8984943199.

The spelling of 133353331 in words is "one hundred thirty-three million, three hundred fifty-three thousand, three hundred thirty-one".