163142547 has 4 divisors (see below), whose sum is σ = 217523400. Its totient is φ = 108761696.

The previous prime is 163142537. The next prime is 163142597. The reversal of 163142547 is 745241361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163142547 - 2¹¹ = 163140499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163142537) 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, 27190422 + ... + 27190427.

It is an arithmetic number, because the mean of its divisors is an integer number (54380850).

Almost surely, 2^163142547 is an apocalyptic number.

163142547 is a deficient number, since it is larger than the sum of its proper divisors (54380853).

163142547 is an equidigital number, since it uses as much as digits as its factorization.

163142547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54380852.

The product of its digits is 20160, while the sum is 33.

The square root of 163142547 is about 12772.7266861857. The cubic root of 163142547 is about 546.4147481365.

The spelling of 163142547 in words is "one hundred sixty-three million, one hundred forty-two thousand, five hundred forty-seven".