133743686 has 4 divisors (see below), whose sum is σ = 200615532. Its totient is φ = 66871842.

The previous prime is 133743677. The next prime is 133743707. The reversal of 133743686 is 686347331.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33435920 + ... + 33435923.

It is an arithmetic number, because the mean of its divisors is an integer number (50153883).

Almost surely, 2^133743686 is an apocalyptic number.

133743686 is a deficient number, since it is larger than the sum of its proper divisors (66871846).

133743686 is an equidigital number, since it uses as much as digits as its factorization.

133743686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66871845.

The product of its digits is 217728, while the sum is 41.

The square root of 133743686 is about 11564.7605249741. The cubic root of 133743686 is about 511.3965133852.

The spelling of 133743686 in words is "one hundred thirty-three million, seven hundred forty-three thousand, six hundred eighty-six".