163365133 has 8 divisors (see below), whose sum is σ = 171818496. Its totient is φ = 155110800.

The previous prime is 163365109. The next prime is 163365143. The reversal of 163365133 is 331563361.

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-163365133 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 = 163365095 and 163365104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163365143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48073 + ... + 51358.

It is an arithmetic number, because the mean of its divisors is an integer number (21477312).

Almost surely, 2^163365133 is an apocalyptic number.

It is an amenable number.

163365133 is a deficient number, since it is larger than the sum of its proper divisors (8453363).

163365133 is an equidigital number, since it uses as much as digits as its factorization.

163365133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99515.

The product of its digits is 14580, while the sum is 31.

The square root of 163365133 is about 12781.4370475311. The cubic root of 163365133 is about 546.6631382795.

It can be divided in two parts, 1633 and 65133, that added together give a palindrome (66766).

The spelling of 163365133 in words is "one hundred sixty-three million, three hundred sixty-five thousand, one hundred thirty-three".