133939244 has 6 divisors (see below), whose sum is σ = 234393684. Its totient is φ = 66969620.

The previous prime is 133939241. The next prime is 133939259. The reversal of 133939244 is 442939331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 133939198 and 133939207.

It is not an unprimeable number, because it can be changed into a prime (133939241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16742402 + ... + 16742409.

It is an arithmetic number, because the mean of its divisors is an integer number (39065614).

Almost surely, 2^133939244 is an apocalyptic number.

It is an amenable number.

133939244 is a deficient number, since it is larger than the sum of its proper divisors (100454440).

133939244 is a wasteful number, since it uses less digits than its factorization.

133939244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33484815 (or 33484813 counting only the distinct ones).

The product of its digits is 69984, while the sum is 38.

The square root of 133939244 is about 11573.2123457578. The cubic root of 133939244 is about 511.6456440886.

The spelling of 133939244 in words is "one hundred thirty-three million, nine hundred thirty-nine thousand, two hundred forty-four".