165463253 has 8 divisors (see below), whose sum is σ = 166475736. Its totient is φ = 164454400.

The previous prime is 165463247. The next prime is 165463283. The reversal of 165463253 is 352364561.

It can be written as a sum of positive squares in 4 ways, for example, as 72880369 + 92582884 = 8537^2 + 9622^2 .

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 165463253 - 2⁶ = 165463189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165463283) 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, 187373 + ... + 188253.

It is an arithmetic number, because the mean of its divisors is an integer number (20809467).

Almost surely, 2^165463253 is an apocalyptic number.

It is an amenable number.

165463253 is a deficient number, since it is larger than the sum of its proper divisors (1012483).

165463253 is an equidigital number, since it uses as much as digits as its factorization.

165463253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815.

The product of its digits is 64800, while the sum is 35.

The square root of 165463253 is about 12863.2520382678. The cubic root of 165463253 is about 548.9934792629.

The spelling of 165463253 in words is "one hundred sixty-five million, four hundred sixty-three thousand, two hundred fifty-three".