201755135 has 4 divisors (see below), whose sum is σ = 242106168. Its totient is φ = 161404104.

The previous prime is 201755119. The next prime is 201755143. The reversal of 201755135 is 531557102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531557102 = 2 ⋅265778551.

It is a cyclic number.

It is not a de Polignac number, because 201755135 - 2⁴ = 201755119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201755098 and 201755107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20175509 + ... + 20175518.

It is an arithmetic number, because the mean of its divisors is an integer number (60526542).

Almost surely, 2^201755135 is an apocalyptic number.

201755135 is a deficient number, since it is larger than the sum of its proper divisors (40351033).

201755135 is an equidigital number, since it uses as much as digits as its factorization.

201755135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40351032.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 201755135 is about 14204.0534707526. The cubic root of 201755135 is about 586.5092497258.

The spelling of 201755135 in words is "two hundred one million, seven hundred fifty-five thousand, one hundred thirty-five".