133223201 has 4 divisors (see below), whose sum is σ = 134240304. Its totient is φ = 132206100.

The previous prime is 133223183. The next prime is 133223219. The reversal of 133223201 is 102322331.

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: 102322331 = 23 ⋅4448797.

It is an interprime number because it is at equal distance from previous prime (133223183) and next prime (133223219).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133223201 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 133223201.

It is not an unprimeable number, because it can be changed into a prime (133223261) 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, 508355 + ... + 508616.

It is an arithmetic number, because the mean of its divisors is an integer number (33560076).

Almost surely, 2^133223201 is an apocalyptic number.

It is an amenable number.

133223201 is a deficient number, since it is larger than the sum of its proper divisors (1017103).

133223201 is a wasteful number, since it uses less digits than its factorization.

133223201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017102.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 133223201 is about 11542.2355287007. The cubic root of 133223201 is about 510.7322571071.

Adding to 133223201 its reverse (102322331), we get a palindrome (235545532).

The spelling of 133223201 in words is "one hundred thirty-three million, two hundred twenty-three thousand, two hundred one".