135821733 has 8 divisors (see below), whose sum is σ = 181164096. Its totient is φ = 90513600.

The previous prime is 135821723. The next prime is 135821753. The reversal of 135821733 is 337128531.

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

It is not a de Polignac number, because 135821733 - 2⁵ = 135821701 is a prime.

It is a super-4 number, since 4×135821733⁴ (a number of 34 digits) contains 4444 as substring.

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 a junction number, because it is equal to n+sod(n) for n = 135821694 and 135821703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135821723) 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, 2893 + ... + 16733.

It is an arithmetic number, because the mean of its divisors is an integer number (22645512).

Almost surely, 2^135821733 is an apocalyptic number.

It is an amenable number.

135821733 is a deficient number, since it is larger than the sum of its proper divisors (45342363).

135821733 is a wasteful number, since it uses less digits than its factorization.

135821733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17115.

The product of its digits is 15120, while the sum is 33.

The square root of 135821733 is about 11654.2581488484. The cubic root of 135821733 is about 514.0315264265.

The spelling of 135821733 in words is "one hundred thirty-five million, eight hundred twenty-one thousand, seven hundred thirty-three".