133741 has 4 divisors (see below), whose sum is σ = 140800. Its totient is φ = 126684.

The previous prime is 133733. The next prime is 133769. The reversal of 133741 is 147331.

133741 = T₃₈ + T₃₉ + ... + T₉₄.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133741 - 2³ = 133733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 7039 = 133741 / (1 + 3 + 3 + 7 + 4 + 1).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133711) 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, 3501 + ... + 3538.

It is an arithmetic number, because the mean of its divisors is an integer number (35200).

2¹³³⁷⁴¹ is an apocalyptic number.

It is an amenable number.

133741 is a deficient number, since it is larger than the sum of its proper divisors (7059).

133741 is an equidigital number, since it uses as much as digits as its factorization.

133741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7058.

The product of its digits is 252, while the sum is 19.

The square root of 133741 is about 365.7061662045. The cubic root of 133741 is about 51.1393089871.

It can be divided in two parts, 1337 and 41, that added together give a triangular number (1378 = T₅₂).

The spelling of 133741 in words is "one hundred thirty-three thousand, seven hundred forty-one".