133100233 has 4 divisors (see below), whose sum is σ = 152114560. Its totient is φ = 114085908.

The previous prime is 133100183. The next prime is 133100237. The reversal of 133100233 is 332001331.

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.

It is a cyclic number.

It is not a de Polignac number, because 133100233 - 2¹³ = 133092041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133100237) 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, 9507153 + ... + 9507166.

It is an arithmetic number, because the mean of its divisors is an integer number (38028640).

Almost surely, 2^133100233 is an apocalyptic number.

It is an amenable number.

133100233 is a deficient number, since it is larger than the sum of its proper divisors (19014327).

133100233 is an equidigital number, since it uses as much as digits as its factorization.

133100233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19014326.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 133100233 is about 11536.9074279029. The cubic root of 133100233 is about 510.5750696284.

Adding to 133100233 its reverse (332001331), we get a palindrome (465101564).

The spelling of 133100233 in words is "one hundred thirty-three million, one hundred thousand, two hundred thirty-three".