163253533 has 8 divisors (see below), whose sum is σ = 178433280. Its totient is φ = 148693440.

The previous prime is 163253527. The next prime is 163253539. The reversal of 163253533 is 335352361.

It is an interprime number because it is at equal distance from previous prime (163253527) and next prime (163253539).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163253533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163253495 and 163253504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163253539) 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, 154363 + ... + 155416.

It is an arithmetic number, because the mean of its divisors is an integer number (22304160).

Almost surely, 2^163253533 is an apocalyptic number.

It is an amenable number.

163253533 is a deficient number, since it is larger than the sum of its proper divisors (15179747).

163253533 is a wasteful number, since it uses less digits than its factorization.

163253533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309827.

The product of its digits is 24300, while the sum is 31.

The square root of 163253533 is about 12777.0705954064. The cubic root of 163253533 is about 546.5386288397.

The spelling of 163253533 in words is "one hundred sixty-three million, two hundred fifty-three thousand, five hundred thirty-three".