135740643 has 8 divisors (see below), whose sum is σ = 182648400. Its totient is φ = 89663328.

The previous prime is 135740611. The next prime is 135740663. The reversal of 135740643 is 346047531.

135740643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 135740643 - 2⁵ = 135740611 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (135740603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207228 + ... + 207881.

It is an arithmetic number, because the mean of its divisors is an integer number (22831050).

Almost surely, 2^135740643 is an apocalyptic number.

135740643 is a deficient number, since it is larger than the sum of its proper divisors (46907757).

135740643 is a wasteful number, since it uses less digits than its factorization.

135740643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415221.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 135740643 is about 11650.7786435071. The cubic root of 135740643 is about 513.9292082048.

The spelling of 135740643 in words is "one hundred thirty-five million, seven hundred forty thousand, six hundred forty-three".