133029239 has 4 divisors (see below), whose sum is σ = 152033424. Its totient is φ = 114025056.

The previous prime is 133029191. The next prime is 133029257. The reversal of 133029239 is 932920331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133029239 - 2¹⁶ = 132963703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133029269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9502082 + ... + 9502095.

It is an arithmetic number, because the mean of its divisors is an integer number (38008356).

Almost surely, 2^133029239 is an apocalyptic number.

133029239 is a deficient number, since it is larger than the sum of its proper divisors (19004185).

133029239 is an equidigital number, since it uses as much as digits as its factorization.

133029239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19004184.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 133029239 is about 11533.8301964265. The cubic root of 133029239 is about 510.4842753644.

It can be divided in two parts, 1330292 and 39, that added together give a palindrome (1330331).

The spelling of 133029239 in words is "one hundred thirty-three million, twenty-nine thousand, two hundred thirty-nine".