133223210 has 16 divisors (see below), whose sum is σ = 242497800. Its totient is φ = 52690176.

The previous prime is 133223183. The next prime is 133223219. The reversal of 133223210 is 12322331.

It can be written as a sum of positive squares in 4 ways, for example, as 39075001 + 94148209 = 6251^2 + 9703^2 .

It is not an unprimeable number, because it can be changed into a prime (133223219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73955 + ... + 75734.

Almost surely, 2^133223210 is an apocalyptic number.

133223210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133223210 is a deficient number, since it is larger than the sum of its proper divisors (109274590).

133223210 is a wasteful number, since it uses less digits than its factorization.

133223210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149785.

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

The square root of 133223210 is about 11542.2359185731. The cubic root of 133223210 is about 510.7322686080.

Adding to 133223210 its reverse (12322331), we get a palindrome (145545541).

It can be divided in two parts, 1332 and 23210, that added together give a palindrome (24542).

The spelling of 133223210 in words is "one hundred thirty-three million, two hundred twenty-three thousand, two hundred ten".