142120024 has 8 divisors (see below), whose sum is σ = 266475060. Its totient is φ = 71060008.

The previous prime is 142120021. The next prime is 142120037. The reversal of 142120024 is 420021241.

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

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142120021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8882494 + ... + 8882509.

Almost surely, 2^142120024 is an apocalyptic number.

It is an amenable number.

142120024 is a deficient number, since it is larger than the sum of its proper divisors (124355036).

142120024 is a wasteful number, since it uses less digits than its factorization.

142120024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17765009 (or 17765005 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 142120024 is about 11921.4103192533. The cubic root of 142120024 is about 521.8572932857.

Adding to 142120024 its reverse (420021241), we get a palindrome (562141265).

The spelling of 142120024 in words is "one hundred forty-two million, one hundred twenty thousand, twenty-four".