133231210 has 32 divisors (see below), whose sum is σ = 290200320. Its totient is φ = 42991872.

The previous prime is 133231207. The next prime is 133231223. The reversal of 133231210 is 12132331.

133231210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54790 + ... + 57169.

It is an arithmetic number, because the mean of its divisors is an integer number (9068760).

Almost surely, 2^133231210 is an apocalyptic number.

133231210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133231210 is an abundant number, since it is smaller than the sum of its proper divisors (156969110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133231210 is a wasteful number, since it uses less digits than its factorization.

133231210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111990.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 133231210 is about 11542.5824666753. The cubic root of 133231210 is about 510.7424914923.

Adding to 133231210 its reverse (12132331), we get a palindrome (145363541).

The spelling of 133231210 in words is "one hundred thirty-three million, two hundred thirty-one thousand, two hundred ten".