163542156 has 12 divisors (see below), whose sum is σ = 381598392. Its totient is φ = 54514048.

The previous prime is 163542151. The next prime is 163542157. The reversal of 163542156 is 651245361.

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

It is not an unprimeable number, because it can be changed into a prime (163542151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6814245 + ... + 6814268.

It is an arithmetic number, because the mean of its divisors is an integer number (31799866).

Almost surely, 2^163542156 is an apocalyptic number.

It is an amenable number.

163542156 is an abundant number, since it is smaller than the sum of its proper divisors (218056236).

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

163542156 is a wasteful number, since it uses less digits than its factorization.

163542156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13628520 (or 13628518 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 163542156 is about 12788.3601763479. The cubic root of 163542156 is about 546.8605223313.

The spelling of 163542156 in words is "one hundred sixty-three million, five hundred forty-two thousand, one hundred fifty-six".