133740244 has 12 divisors (see below), whose sum is σ = 255322368. Its totient is φ = 60791000.

The previous prime is 133740223. The next prime is 133740251. The reversal of 133740244 is 442047331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519732 + ... + 1519819.

It is an arithmetic number, because the mean of its divisors is an integer number (21276864).

Almost surely, 2^133740244 is an apocalyptic number.

It is an amenable number.

133740244 is a deficient number, since it is larger than the sum of its proper divisors (121582124).

133740244 is a wasteful number, since it uses less digits than its factorization.

133740244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039566 (or 3039564 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 133740244 is about 11564.6117098673. The cubic root of 133740244 is about 511.3921262824.

Adding to 133740244 its reverse (442047331), we get a palindrome (575787575).

The spelling of 133740244 in words is "one hundred thirty-three million, seven hundred forty thousand, two hundred forty-four".