133402033 has 4 divisors (see below), whose sum is σ = 133466148. Its totient is φ = 133337920.

The previous prime is 133402019. The next prime is 133402079. The reversal of 133402033 is 330204331.

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 61355889 + 72046144 = 7833^2 + 8488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133402033 is a prime.

It is a super-2 number, since 2×133402033² = 35592204817066178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133402033.

It is not an unprimeable number, because it can be changed into a prime (133402333) 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, 28828 + ... + 33133.

It is an arithmetic number, because the mean of its divisors is an integer number (33366537).

Almost surely, 2^133402033 is an apocalyptic number.

It is an amenable number.

133402033 is a deficient number, since it is larger than the sum of its proper divisors (64115).

133402033 is an equidigital number, since it uses as much as digits as its factorization.

133402033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64114.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 133402033 is about 11549.9797835321. The cubic root of 133402033 is about 510.9606818680.

Adding to 133402033 its reverse (330204331), we get a palindrome (463606364).

The spelling of 133402033 in words is "one hundred thirty-three million, four hundred two thousand, thirty-three".