133103233 has 4 divisors (see below), whose sum is σ = 135359280. Its totient is φ = 130847188.

The previous prime is 133103219. The next prime is 133103263. The reversal of 133103233 is 332301331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 332301331 = 4637 ⋅71663.

It is a cyclic number.

It is not a de Polignac number, because 133103233 - 2²¹ = 131006081 is a prime.

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 133103233.

It is not an unprimeable number, because it can be changed into a prime (133103213) 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, 1127935 + ... + 1128052.

It is an arithmetic number, because the mean of its divisors is an integer number (33839820).

Almost surely, 2^133103233 is an apocalyptic number.

It is an amenable number.

133103233 is a deficient number, since it is larger than the sum of its proper divisors (2256047).

133103233 is an equidigital number, since it uses as much as digits as its factorization.

133103233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256046.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 133103233 is about 11537.0374446822. The cubic root of 133103233 is about 510.5789056189.

Adding to 133103233 its reverse (332301331), we get a palindrome (465404564).

The spelling of 133103233 in words is "one hundred thirty-three million, one hundred three thousand, two hundred thirty-three".