163533156 has 12 divisors (see below), whose sum is σ = 381577392. Its totient is φ = 54511048.

The previous prime is 163533113. The next prime is 163533169. The reversal of 163533156 is 651335361.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×163533156² = 53486186222640672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6813870 + ... + 6813893.

It is an arithmetic number, because the mean of its divisors is an integer number (31798116).

Almost surely, 2^163533156 is an apocalyptic number.

It is an amenable number.

163533156 is an abundant number, since it is smaller than the sum of its proper divisors (218044236).

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

163533156 is a wasteful number, since it uses less digits than its factorization.

163533156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13627770 (or 13627768 counting only the distinct ones).

The product of its digits is 24300, while the sum is 33.

The square root of 163533156 is about 12788.0082890183. The cubic root of 163533156 is about 546.8504905957.

The spelling of 163533156 in words is "one hundred sixty-three million, five hundred thirty-three thousand, one hundred fifty-six".