163135323 has 16 divisors (see below), whose sum is σ = 260273440. Its totient is φ = 100390752.

The previous prime is 163135307. The next prime is 163135327. The reversal of 163135323 is 323531361.

It is a happy number.

163135323 is a `hidden beast` number, since 1 + 631 + 3 + 5 + 3 + 23 = 666.

It is not a de Polignac number, because 163135323 - 2⁴ = 163135307 is a prime.

It is a super-2 number, since 2×163135323² = 53226267220628658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163135327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232036 + ... + 232737.

It is an arithmetic number, because the mean of its divisors is an integer number (16267090).

Almost surely, 2^163135323 is an apocalyptic number.

163135323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

163135323 is a deficient number, since it is larger than the sum of its proper divisors (97138117).

163135323 is a wasteful number, since it uses less digits than its factorization.

163135323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464795 (or 464789 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 163135323 is about 12772.4438930065. The cubic root of 163135323 is about 546.4066828822.

Adding to 163135323 its reverse (323531361), we get a palindrome (486666684).

The spelling of 163135323 in words is "one hundred sixty-three million, one hundred thirty-five thousand, three hundred twenty-three".