133029238 has 16 divisors (see below), whose sum is σ = 201985056. Its totient is φ = 65704320.

The previous prime is 133029191. The next prime is 133029257. The reversal of 133029238 is 832920331.

133029238 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 150558 + ... + 151438.

It is an arithmetic number, because the mean of its divisors is an integer number (12624066).

Almost surely, 2^133029238 is an apocalyptic number.

133029238 is a deficient number, since it is larger than the sum of its proper divisors (68955818).

133029238 is a wasteful number, since it uses less digits than its factorization.

133029238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 133029238 is about 11533.8301530758. The cubic root of 133029238 is about 510.4842740852.

Adding to 133029238 its reverse (832920331), we get a palindrome (965949569).

The spelling of 133029238 in words is "one hundred thirty-three million, twenty-nine thousand, two hundred thirty-eight".