133305522 has 32 divisors (see below), whose sum is σ = 307556352. Its totient is φ = 37730064.

The previous prime is 133305511. The next prime is 133305533. The reversal of 133305522 is 225503331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (133305511) and next prime (133305533).

It is a junction number, because it is equal to n+sod(n) for n = 133305492 and 133305501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10338 + ... + 19325.

It is an arithmetic number, because the mean of its divisors is an integer number (9611136).

Almost surely, 2^133305522 is an apocalyptic number.

133305522 is an abundant number, since it is smaller than the sum of its proper divisors (174250830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133305522 is a wasteful number, since it uses less digits than its factorization.

133305522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29782.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 133305522 is about 11545.8010549290. The cubic root of 133305522 is about 510.8374323140.

Adding to 133305522 its reverse (225503331), we get a palindrome (358808853).

The spelling of 133305522 in words is "one hundred thirty-three million, three hundred five thousand, five hundred twenty-two".