133738 has 8 divisors (see below), whose sum is σ = 218880. Its totient is φ = 60780.

The previous prime is 133733. The next prime is 133769. The reversal of 133738 is 837331.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3018 + ... + 3061.

It is an arithmetic number, because the mean of its divisors is an integer number (27360).

2¹³³⁷³⁸ is an apocalyptic number.

133738 is a deficient number, since it is larger than the sum of its proper divisors (85142).

133738 is a wasteful number, since it uses less digits than its factorization.

133738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6092.

The product of its digits is 1512, while the sum is 25.

The square root of 133738 is about 365.7020645279. The cubic root of 133738 is about 51.1389266085.

The spelling of 133738 in words is "one hundred thirty-three thousand, seven hundred thirty-eight".