133020340 has 24 divisors (see below), whose sum is σ = 285288192. Its totient is φ = 52075680.

The previous prime is 133020331. The next prime is 133020341. The reversal of 133020340 is 43020331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133020341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69816 + ... + 71695.

It is an arithmetic number, because the mean of its divisors is an integer number (11887008).

Almost surely, 2^133020340 is an apocalyptic number.

133020340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133020340 is an abundant number, since it is smaller than the sum of its proper divisors (152267852).

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

133020340 is a wasteful number, since it uses less digits than its factorization.

133020340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141567 (or 141565 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 133020340 is about 11533.4444117965. Note that the first 4 decimals coincide. The cubic root of 133020340 is about 510.4728921504.

Adding to 133020340 its reverse (43020331), we get a palindrome (176040671).

Subtracting from 133020340 its reverse (43020331), we obtain a palindrome (90000009).

The spelling of 133020340 in words is "one hundred thirty-three million, twenty thousand, three hundred forty".