133439522 has 8 divisors (see below), whose sum is σ = 200649900. Its totient is φ = 66556224.

The previous prime is 133439521. The next prime is 133439549. The reversal of 133439522 is 225934331.

133439522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 131997121 + 1442401 = 11489^2 + 1201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×133439522² = 35612212063176968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133439521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80747 + ... + 82382.

Almost surely, 2^133439522 is an apocalyptic number.

133439522 is a deficient number, since it is larger than the sum of its proper divisors (67210378).

133439522 is a wasteful number, since it uses less digits than its factorization.

133439522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163540.

The product of its digits is 19440, while the sum is 32.

The square root of 133439522 is about 11551.6025728035. The cubic root of 133439522 is about 511.0085412359.

The spelling of 133439522 in words is "one hundred thirty-three million, four hundred thirty-nine thousand, five hundred twenty-two".