142167224 has 8 divisors (see below), whose sum is σ = 266563560. Its totient is φ = 71083608.

The previous prime is 142167211. The next prime is 142167227. The reversal of 142167224 is 422761241.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142167227) by changing a digit.

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 as a sum of consecutive naturals, namely, 8885444 + ... + 8885459.

It is an arithmetic number, because the mean of its divisors is an integer number (33320445).

Almost surely, 2^142167224 is an apocalyptic number.

It is an amenable number.

142167224 is a deficient number, since it is larger than the sum of its proper divisors (124396336).

142167224 is a wasteful number, since it uses less digits than its factorization.

142167224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17770909 (or 17770905 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 142167224 is about 11923.3897864659. The cubic root of 142167224 is about 521.9150588682.

The spelling of 142167224 in words is "one hundred forty-two million, one hundred sixty-seven thousand, two hundred twenty-four".