142031122 has 8 divisors (see below), whose sum is σ = 213137676. Its totient is φ = 70985232.

The previous prime is 142031081. The next prime is 142031143. The reversal of 142031122 is 221130241.

It can be written as a sum of positive squares in 2 ways, for example, as 141871921 + 159201 = 11911^2 + 399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 142031096 and 142031105.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 8773 + ... + 19000.

Almost surely, 2^142031122 is an apocalyptic number.

142031122 is a deficient number, since it is larger than the sum of its proper divisors (71106554).

142031122 is a wasteful number, since it uses less digits than its factorization.

142031122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30332.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 142031122 is about 11917.6810663820. The cubic root of 142031122 is about 521.7484560908.

Adding to 142031122 its reverse (221130241), we get a palindrome (363161363).

The spelling of 142031122 in words is "one hundred forty-two million, thirty-one thousand, one hundred twenty-two".