163224142 has 4 divisors (see below), whose sum is σ = 244836216. Its totient is φ = 81612070.

The previous prime is 163224133. The next prime is 163224143. The reversal of 163224142 is 241422361.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163224143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40806034 + ... + 40806037.

It is an arithmetic number, because the mean of its divisors is an integer number (61209054).

Almost surely, 2^163224142 is an apocalyptic number.

163224142 is a deficient number, since it is larger than the sum of its proper divisors (81612074).

163224142 is an equidigital number, since it uses as much as digits as its factorization.

163224142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81612073.

The product of its digits is 2304, while the sum is 25.

The square root of 163224142 is about 12775.9203973726. The cubic root of 163224142 is about 546.5058285676.

The spelling of 163224142 in words is "one hundred sixty-three million, two hundred twenty-four thousand, one hundred forty-two".