163423532 has 6 divisors (see below), whose sum is σ = 285991188. Its totient is φ = 81711764.

The previous prime is 163423531. The next prime is 163423549. The reversal of 163423532 is 235324361.

It is a super-2 number, since 2×163423532² = 53414501622710048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 163423495 and 163423504.

It is not an unprimeable number, because it can be changed into a prime (163423531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20427938 + ... + 20427945.

It is an arithmetic number, because the mean of its divisors is an integer number (47665198).

Almost surely, 2^163423532 is an apocalyptic number.

It is an amenable number.

163423532 is a deficient number, since it is larger than the sum of its proper divisors (122567656).

163423532 is a wasteful number, since it uses less digits than its factorization.

163423532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40855887 (or 40855885 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

The square root of 163423532 is about 12783.7213674266. The cubic root of 163423532 is about 546.7282700423.

Adding to 163423532 its reverse (235324361), we get a palindrome (398747893).

The spelling of 163423532 in words is "one hundred sixty-three million, four hundred twenty-three thousand, five hundred thirty-two".