163533120 has 56 divisors (see below), whose sum is σ = 519220704. Its totient is φ = 43608576.

The previous prime is 163533113. The next prime is 163533169. The reversal of 163533120 is 21335361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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, 84214 + ... + 86133.

Almost surely, 2^163533120 is an apocalyptic number.

163533120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163533120 is an abundant number, since it is smaller than the sum of its proper divisors (355687584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163533120 is a wasteful number, since it uses less digits than its factorization.

163533120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170367 (or 170357 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 163533120 is about 12788.0068814495. The cubic root of 163533120 is about 546.8504504680.

Adding to 163533120 its reverse (21335361), we get a palindrome (184868481).

The spelling of 163533120 in words is "one hundred sixty-three million, five hundred thirty-three thousand, one hundred twenty".