133011338 has 4 divisors (see below), whose sum is σ = 199517010. Its totient is φ = 66505668.

The previous prime is 133011317. The next prime is 133011353. The reversal of 133011338 is 833110331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 833110331 = 509 ⋅1636759.

It can be written as a sum of positive squares in only one way, i.e., 109265209 + 23746129 = 10453^2 + 4873^2 .

It is a Curzon number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 33252833 + ... + 33252836.

Almost surely, 2^133011338 is an apocalyptic number.

133011338 is a deficient number, since it is larger than the sum of its proper divisors (66505672).

133011338 is an equidigital number, since it uses as much as digits as its factorization.

133011338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66505671.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 133011338 is about 11533.0541488367. The cubic root of 133011338 is about 510.4613766668.

Adding to 133011338 its reverse (833110331), we get a palindrome (966121669).

The spelling of 133011338 in words is "one hundred thirty-three million, eleven thousand, three hundred thirty-eight".