133038340 has 24 divisors (see below), whose sum is σ = 280589400. Its totient is φ = 52985088.

The previous prime is 133038331. The next prime is 133038397. The reversal of 133038340 is 43830331.

It can be written as a sum of positive squares in 4 ways, for example, as 5184 + 133033156 = 72^2 + 11534^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9615 + ... + 18934.

It is an arithmetic number, because the mean of its divisors is an integer number (11691225).

Almost surely, 2^133038340 is an apocalyptic number.

133038340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133038340 is an abundant number, since it is smaller than the sum of its proper divisors (147551060).

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

133038340 is a wasteful number, since it uses less digits than its factorization.

133038340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28791 (or 28789 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 133038340 is about 11534.2247247052. The cubic root of 133038340 is about 510.4959164429.

Adding to 133038340 its reverse (43830331), we get a palindrome (176868671).

The spelling of 133038340 in words is "one hundred thirty-three million, thirty-eight thousand, three hundred forty".