142163888 has 10 divisors (see below), whose sum is σ = 275442564. Its totient is φ = 71081936.

The previous prime is 142163881. The next prime is 142163929. The reversal of 142163888 is 888361241.

It is not an unprimeable number, because it can be changed into a prime (142163881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4442606 + ... + 4442637.

Almost surely, 2^142163888 is an apocalyptic number.

It is an amenable number.

142163888 is a deficient number, since it is larger than the sum of its proper divisors (133278676).

142163888 is an equidigital number, since it uses as much as digits as its factorization.

142163888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8885251 (or 8885245 counting only the distinct ones).

The product of its digits is 73728, while the sum is 41.

The square root of 142163888 is about 11923.2498925419. The cubic root of 142163888 is about 521.9109765343.

The spelling of 142163888 in words is "one hundred forty-two million, one hundred sixty-three thousand, eight hundred eighty-eight".