133223001 has 16 divisors (see below), whose sum is σ = 182167104. Its totient is φ = 86575104.

The previous prime is 133222967. The next prime is 133223009. The reversal of 133223001 is 100322331.

It is not a de Polignac number, because 133223001 - 2⁶ = 133222937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133223009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16081 + ... + 22913.

It is an arithmetic number, because the mean of its divisors is an integer number (11385444).

Almost surely, 2^133223001 is an apocalyptic number.

It is an amenable number.

133223001 is a deficient number, since it is larger than the sum of its proper divisors (48944103).

133223001 is an equidigital number, since it uses as much as digits as its factorization.

133223001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 133223001 is about 11542.2268648645. The cubic root of 133223001 is about 510.7320015297.

Adding to 133223001 its reverse (100322331), we get a palindrome (233545332).

The spelling of 133223001 in words is "one hundred thirty-three million, two hundred twenty-three thousand, one".