142031342 has 4 divisors (see below), whose sum is σ = 213047016. Its totient is φ = 71015670.

The previous prime is 142031341. The next prime is 142031353. The reversal of 142031342 is 243130241.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×142031342² = 40345804220641928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142031341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35507834 + ... + 35507837.

It is an arithmetic number, because the mean of its divisors is an integer number (53261754).

Almost surely, 2^142031342 is an apocalyptic number.

142031342 is a deficient number, since it is larger than the sum of its proper divisors (71015674).

142031342 is an equidigital number, since it uses as much as digits as its factorization.

142031342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71015673.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 142031342 is about 11917.6902963620. The cubic root of 142031342 is about 521.7487254791.

Adding to 142031342 its reverse (243130241), we get a palindrome (385161583).

The spelling of 142031342 in words is "one hundred forty-two million, thirty-one thousand, three hundred forty-two".