133744838 has 8 divisors (see below), whose sum is σ = 211176120. Its totient is φ = 63352800.

The previous prime is 133744837. The next prime is 133744847. The reversal of 133744838 is 838447331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 133744795 and 133744804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133744837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1759763 + ... + 1759838.

It is an arithmetic number, because the mean of its divisors is an integer number (26397015).

Almost surely, 2^133744838 is an apocalyptic number.

133744838 is a deficient number, since it is larger than the sum of its proper divisors (77431282).

133744838 is a wasteful number, since it uses less digits than its factorization.

133744838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519622.

The product of its digits is 193536, while the sum is 41.

The square root of 133744838 is about 11564.8103313457. The cubic root of 133744838 is about 511.3979816841.

The spelling of 133744838 in words is "one hundred thirty-three million, seven hundred forty-four thousand, eight hundred thirty-eight".