142243016 has 8 divisors (see below), whose sum is σ = 266705670. Its totient is φ = 71121504.

The previous prime is 142242917. The next prime is 142243019. The reversal of 142243016 is 610342241.

It can be written as a sum of positive squares in only one way, i.e., 111218116 + 31024900 = 10546^2 + 5570^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 142242982 and 142243000.

It is not an unprimeable number, because it can be changed into a prime (142243019) 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, 8890181 + ... + 8890196.

Almost surely, 2^142243016 is an apocalyptic number.

It is an amenable number.

142243016 is a deficient number, since it is larger than the sum of its proper divisors (124462654).

142243016 is a wasteful number, since it uses less digits than its factorization.

142243016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17780383 (or 17780379 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 142243016 is about 11926.5676537720. The cubic root of 142243016 is about 522.0077899436.

Adding to 142243016 its reverse (610342241), we get a palindrome (752585257).

The spelling of 142243016 in words is "one hundred forty-two million, two hundred forty-three thousand, sixteen".