133442210 has 32 divisors (see below), whose sum is σ = 264648384. Its totient is φ = 48040000.

The previous prime is 133442209. The next prime is 133442219. The reversal of 133442210 is 12244331.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133442219) 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, 5105 + ... + 17115.

It is an arithmetic number, because the mean of its divisors is an integer number (8270262).

Almost surely, 2^133442210 is an apocalyptic number.

133442210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133442210 is a deficient number, since it is larger than the sum of its proper divisors (131206174).

133442210 is a wasteful number, since it uses less digits than its factorization.

133442210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12130.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 133442210 is about 11551.7189197106. The cubic root of 133442210 is about 511.0119724575.

Adding to 133442210 its reverse (12244331), we get a palindrome (145686541).

The spelling of 133442210 in words is "one hundred thirty-three million, four hundred forty-two thousand, two hundred ten".