133212214 has 16 divisors (see below), whose sum is σ = 206638128. Its totient is φ = 64370592.

The previous prime is 133212203. The next prime is 133212229. The reversal of 133212214 is 412212331.

It is a happy number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 133212191 and 133212200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2277 + ... + 16480.

It is an arithmetic number, because the mean of its divisors is an integer number (12914883).

Almost surely, 2^133212214 is an apocalyptic number.

133212214 is a deficient number, since it is larger than the sum of its proper divisors (73425914).

133212214 is a wasteful number, since it uses less digits than its factorization.

133212214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18879.

The product of its digits is 288, while the sum is 19.

The square root of 133212214 is about 11541.7595712266. The cubic root of 133212214 is about 510.7182165858.

Adding to 133212214 its reverse (412212331), we get a palindrome (545424545).

The spelling of 133212214 in words is "one hundred thirty-three million, two hundred twelve thousand, two hundred fourteen".