165743353 has 8 divisors (see below), whose sum is σ = 175708872. Its totient is φ = 155801856.

The previous prime is 165743341. The next prime is 165743399. The reversal of 165743353 is 353347561.

165743353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 38775529 + 126967824 = 6227^2 + 11268^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 165743353 - 2¹⁷ = 165612281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165753353) 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, 9351 + ... + 20467.

It is an arithmetic number, because the mean of its divisors is an integer number (21963609).

Almost surely, 2^165743353 is an apocalyptic number.

It is an amenable number.

165743353 is a deficient number, since it is larger than the sum of its proper divisors (9965519).

165743353 is a wasteful number, since it uses less digits than its factorization.

165743353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12011.

The product of its digits is 113400, while the sum is 37.

The square root of 165743353 is about 12874.1350389065. The cubic root of 165743353 is about 549.3030875537.

The spelling of 165743353 in words is "one hundred sixty-five million, seven hundred forty-three thousand, three hundred fifty-three".