133042223 has 4 divisors (see below), whose sum is σ = 133076328. Its totient is φ = 133008120.

The previous prime is 133042219. The next prime is 133042267. The reversal of 133042223 is 322240331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322240331 = 7 ⋅46034333.

It is a cyclic number.

It is not a de Polignac number, because 133042223 - 2² = 133042219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133042195 and 133042204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133045223) 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, 10313 + ... + 19298.

It is an arithmetic number, because the mean of its divisors is an integer number (33269082).

Almost surely, 2^133042223 is an apocalyptic number.

133042223 is a deficient number, since it is larger than the sum of its proper divisors (34105).

133042223 is an equidigital number, since it uses as much as digits as its factorization.

133042223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34104.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 133042223 is about 11534.3930486177. The cubic root of 133042223 is about 510.5008830221.

Adding to 133042223 its reverse (322240331), we get a palindrome (455282554).

The spelling of 133042223 in words is "one hundred thirty-three million, forty-two thousand, two hundred twenty-three".